Back in the day, dealership agreements were territory-based. You were THE dealer for a product in a city. But, as the industry grew, they started dividing up those territories, making them smaller and smaller until there was no longer any territory — there were 2, 3, 4, or 40 dealers for the same product in the same city.
So, dealers started adding more products as they lost territory. They assumed that more products equaled more value to the buyer.
But it doesn’t.
I doubt you can name anyone right now that is still doing this strategy successfully… except Amazon.
For the rest of us, product is not a strategy.