Let's say you buy the tank and are able to get it fixed. Then one day, the bottom cracks again (should have put tempered glass in the bottom) and the salt water drains out all over your floor. Now your floors are ruined (unless it is plain old concrete) and everything in your tanks dies. This happens right after you go to work (always happens at the most inopertune time) and so when you get home the house reeks of dead fish smell. This will cost you thousands of dollars to cleanup. The insurance may or may not cover it. There is also the deductable to consider.

You may think you are saving money and getting a great deal but what you are buying is a nightmare wiating to happen. Don't do it! If you cannot afford the tank now (which will be one of your least expensive purchases) then you should really consider if you have the means (the money) to get into this hobby.