Hi Tinabeana,
I know how you feel trust me! Several of my "rescue" chinchillas come from pet stores.
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Unfortunately they were also kept in poor conditions and not cared for properly. Usually we come home and I cannot stand it so we go back to get them.
I buy them and take them home with me to live a very nice life, like they deserve! I don't breed so no worry there.
These guys have turned out to be wonderful chins and very happy & appreciative ones! One is blind, and 2 have seizure disorders. Both of these medical problems have not been expensive or huge issues for us. If I could turn time back I'd do it all over again and adopt them again!
The pet stores all have gotten ear beatings from me on proper chinchilla care.
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I have talked to them, taken in care sheets for them as well as their customers and introduced them to the chinchilla club site and others. I do have to say that many have improved the care since. So, it was all worth it.
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I think they all run when they see me coming now!