I currently have 4 tanks at home, one is a very small freshwater tank that I use as a night light for my daughter, another is my 215 gallon in-wall that is running but has no occupants (working on a remodel of the garage), a 45G stretch hex that I'm in the process of tearing down to transfer into my new 57G Illuminata. I actually don't get tired of my aquariums. I have several hours each morning before work that I use to do some light maintenance and tinkering. I enjoy what I do.

As far as the pay, you can make great money if you service. I think I pay my service guys better than any other company out there and that's because I expect them to do the best job possible. If you work sales/customer service in the store the pay would be similar to any other retail job.