People who know about the Petco deal wont buy them, so it would have to be some other sucker. You might have to hold them till a time when the sale is not going to get any turn around profit. But even then you are not a store so people will want a bargain.
One lfs in indy has 40b for 169.99$ lol. I agree stock up, you can even make a 6'x18" tank with two of them, just need to silicone acylic brace on the top and on the seem. Someone did it with a 29 and two 55 gallons.
That's a awesome bro but I'm not at that monster level yet. I only have a few 125's n 55's nd two 29's so I don't plan on using them unless I get rid of one I have which I wont lol. I might pick up 6 tmmrw tho. They haven't sold any I checked tonight