My next reaction was to buy all of them, but that was dumb too.

For anyone reading this, and who've contemplated the same action--DON'T. I hear of too many people who think they're doing the right thing by "rescuing" animals in this manner. The owner of the store (or in this case, cart) sees only a sale, no matter what the motive of the purchaser, and buys another in the hopes of making another sale.

If it's a real case for "rescue," the animal could be had for a reduced price (if charged at all). Otherwise, it's just a "sale," and although an individual specimen might have a happier future, it may be at the expense of many of its conspecifics.
-----
Chris McMartin
www.mcmartinville.com
I'm Not a Herpetologist, but I Play One on the Internet