[Question] I know it's been asked before but..

[Minkness]

1. You CAN stack them, just carefully and with some creativity.

2. Very affordable for what they are if you get them off second hand sites like craigslist or if you catch te $1 a gallon sale at petco.

3. Can't argue this, buuut, its easy to alter with tape.

4. Yes...they can get VERY heavy and can be fragile if dropped or bumped.

Anything can make a 'fair' enclosure with a bit of alterations. Even tubs, while light weight and easy to clean, require holes to be drilled for air. And the nicer reptile specific enclosures are very expensive if you have more than 3 animals. That cost really adds up! Even racks add up on price and the drawbacks on those is that you can't see though the tubs.

Everything has a pro and con, it's what's important to you that matters, and that you are able to maintain the temps and humidity according to the species.

=)