Yeah AJ, those Kord pots you bought are the best, IMO. They're very sturdy and last for several years. I've got some 2 1/2" I've been using for 4 years now and they still look like new. I also bought 800 of the 3.5" with trays - they were delivered last week. They are nice.
That being said, if I was a seller, I'd look at the TLC line. I've used them as well and it is a very good pot, but not quite up to the Kord. But, you're reselling it so who cares, lol? And, with the Kords at a nickel a pop more, it can get expensive when you're talking hundreds (or thousands) of pots.
Lastly, it might surprise you, but there's a BIG difference between 3 1/4" and 3 1/2". That extra half inch adds significant area for root development. If you're gonna grow lots of plants AND be able wholesale or turn them all in a week or so, that's great. But if it's gonna take two or three or four weeks to sell them, you might want the extra root room. I'm sure you don't want to pot up again
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jmo