Wholesale prices are always cheaper than retail- but thats because retailers actually do work for their money. They pay rent, utilities, and taxes, they pay gas and vehicle upkeep, they pay salaries and much more.
If you are saving 40% by buying wholesale, but then charging a "percentage" to drive, shop, sort, deliver, pay and collect, and so on, you are a retailer. Yes, you could do it cheaper than a store, since you wouldnt have rent, but it will still cost you something.
And its a lot of work taking orders each week, buying, sorting, and delivering, holding the bag when someone doesnt pay, and so on.
My guess is that, if you price too low, you wont do it for long, as you will find it too much work.
And if you price for what its worth, you wont be much cheaper than my neighborhood chino, which will sell me 1 liter of beer at ten at night.
convenience, to me, is worth a percentage too.
You can save 40% or more on most things in Argentina, if you are willing to go to the wholesaler, and buy in bulk. I just bought a whole bunch of underwear and shirts in Once, and, yes, I saved over 40% from the stores on Santa Fe for the same brand- but I had to buy quite a bit to get that discount. Worked for me, as I was buying for 4 people. But retail in BsAs works for a reason.
Except of the fact that retailers charge such diverse prices for goods that to consumers it feels like you're constantly getting fleeced. For example tonight I saw in barrio chino, at one of the large supermarkets, a pack of Philadelphia cream cheese for 55pesos. Down the street at coto it was 38; that's 44% higher! The other day I bought two bathroom scales off of mercadolibre for 150 pesos each. A similar scale at the grocery store cost 500 pesos. They store selling on mercado libre also had a store front with rent and taxes and other overhead. Where did that 350 pesos go?
The beef at coto is cheaper, the wine at disco is cheaper, the chicken at carrefour is cheaper. Should we all shop at each to find the cheapest prices?
Not to mention the whole you would be getting 30% off tonight if only you had such and such benefit card. I understand that retailers provide a service and charge for doing so but around here that mark up feels less like added value and more like taking advantage of an uninformed market.