Haha..that's reassuring. Perhaps I should give up before I begin.
If I was still single I would tend to agree with you, but even with my wife being as supportive as she is, I'm not betting on things getting too out of hand. I have too many other expensive hobbies that I'm unwilling to sacrifice.
I know just enough to not buy stuff at a major electronics store, but not so much that I'll make the time to get too hardcore.
In fact to be honest, I get more enjoyment out of the research, learning, and then getting kick-ass (relative term) equipment while others stupidly overpay for lesser grade than anything.
Perhaps the real hobby is purchase research :-)