Well, tanks can get down to $1 per gallon new if you want something small OR if you catch a sale. That isn't outside the realm of possibility for second hand. The biggest problem for buying is that the stand is usually included and stands are NOT cheap. Most people have to pay a HUGE amount for new and then want at least half of theat back when they sell. And if the filtration is included, etc, it will be even more.
Take a look around ebay and aquabid and you'll get an idea about how much things go for. My main problem with some of these is that they won't ship. AH! The deals I could have gotten if I lived in MY or NJ!! Chicago!!! But, oh well, I keep looking for the gem for sale in Memphis!
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