
Story
I really love the fact that multiple floors were added to stores because now they can at least sell 12 products per store, a massive improvement imho.

In the original Cap 2, it always made me feel a little sad that my store only had 4 products it could sell despite its large size such as a supermarket, department store or worst of all, the discount megastore

I mean what discount megastore only sells

- chewing gum
- cola
- eggs
- cough syrup

I don't think it would be unbalanced if a store offered more product variety possible but perhaps less quantity per floor depending on the choices you make.
Currently a regular supermarket can provide the following product classes and I listed the number of products per class as well.
- Beverage 4 products
- Body Care Products 4 products
- Drugs 3 products
- Food 5 products
- Household Products 4 products
- Livestock Products 6 products
- Snacks 6 products
That means in the original capitalism 2 you'd need a minimum of 8 supermarkets even in a small city just to sell all the different products and you'd need even more in a huge wealthy city due to the increased demand (2 or 3 times as many in fact). With the added 3 floor system this is essentially only 3 supermarkets now which really isn't that bad honestly, it makes it quite playable and interesting but it's still not that what I'd hoped. Add in some competition and you've got like dozens and dozens of supermarkets even in tiny cities. You could argue that you can sell lots of these products in specialty stores and that you should only count the products that can be sold exclusively in the supermarket. That would give you 25 products, which is still more than 2 supermarkets minimum per city with multiple floors enabled.`Or 7 supermarkets without multiple floors.
Now take the department store for example:
- Software 20 products
- Apparel 4 products
- Body Care Products 4 products
- Communication Devices 4 products
- Computer 4 products
- Cosmetics 4 products
- Electronics 4 products
- Footwear 4 products
- Furniture 3 products
- Home Appliances 3 products
- Jewelry 2 products
- Leather Goods 4 products
- Photography Products 3 products
- Sports Equipment 3 products
- Toy 4 products
- Watch 3 products

Really even if you had 4 x the amount of products per store you'd still need more than 1 department store to sell everything there is to offer in this type of store and let's not even get started about the discount megastore ...
I propose therefore that it would be amazingly awesome if we had an aisle system in a retail store providing 4 times the product instead of 1. It would look really awesome if a supermarket was stacked full with all the different products it could sell. I think it would help the AI as well in making balanced stores because lackluster products could be mitigated by more well performing products. And Mods ... omg they would benefit the absolute most from this change because they add so many products with variable demand that it is impossible to fill up a whole city with every product because of it. This would save immense amounts of retail space.
Especially something like the discount megastore would benefit from something like enhanced product variety. It's strange that the largest store doesn't provide any more choice in product.
Alternate System based on Store type/size
You could even set it up in such a way that convenience stores only provide the regular 4 products per floor, supermarkets 8 products per floor, department stores 12 products per floor and the discount megastore 16 products per floor. This would provide a much needed separation between the uses of these stores and make them more interesting imho. Or even better, let the amount of floors be dependent on the store type itself.
If you divided the product box UI that currently exists into 4 separate boxes each, the UI would stay relatively the same and these boxes had always been extremely large so dividing them up by 4 leaves plenty of room to view the products.
Is such a thing even possible and do people even like this idea of added product variety per floor? Personally I'd love to see this implemented more than anything really.

Hope to know what you all think and plz vote for what you'd enjoy the most. Thanks for reading if you managed this far. I'm a bit long-winded when I post ...

TL:DR: 4 x the amount of products per floor, each regular store product placement would now become an aisle of 4 products or 16 per floor) providing more product variety potential and more configurable product supply. Maximum of 48 products with 3 floors. Alternative method, only allow larger stores such as supermarket (2x), department store (3x) and discount (4x) to provide more product variety than currently by allowing (#x) more storefloors and potentially less floors for smaller stores.