Fucking rough crowd, I am not from Houston but will be visiting so I am checking the boards.
There are a couple of pieces of advice that make sense to me. AMP's, I don't know what it is - but it seems more like a job at AMPs. It is not so much mechanical is it is an occupation. They are there to provide a service and in general they do it well.
As for regret on money spent, it will happen - buyer's remorse will occur anywhere. There may be times that you feel it more so with this type of purchase.
I don't think you should do GFE. The other piece of advice that I think makes sense - get a divorce. Life is to short.
So if you want the hobby - get a massage with a happy ending. It will relax you and give you a release. If you don't think you can handle that - then just call it.
I can see why Houston is NOT called the city of Brotherly Love.