My wife has a standard set of responses to each new package of laser "stuff" I bring home where she will start with "That's just fine, but . . ."
Then when passing my work room (my laser lair) she will ask
Hello, I am madmacmo and I am a High Tech Junkie
I can't stop either, but I like how you go to the source of your addiction to somehow get reassurance that you do not have a problem . Like going the local pub and asking the drunks at the bar, i don't drink too much, do I?
I think it's more of an obsession than an addiction. As long as you have fun, learn, and don't kill the family pet or burn down the house, who are you hurting?
So what are you planning to buy/build next?