So, do you keep spares? I have some, not really because I think I'll need them necessarily, but usually more because they aren't worth selling. I have one of each model Saturn for example. I have both models of NES, but they are both hooked up in different parts of the house.
I was originally just going to ask about my Vectrex situation, but decided to broaden the topic.
I currently have 2 Vectrexes (Vectrii?) both in good working order after I fixed a controller and other minor work on one. I love these machines, but honestly don't play it enough, and never will, such that I'm worried about wearing one out. Are there other compelling reasons to keep a spare? I don't know much about failure rates on these; am I likely to pull it out one day next year and it simply not work? 5 years? 10 years? Remember I'm not even playing on a weekly basis, so fatigue I would consider an issue.
Well, I just checked eBay to see what I might get for it if I sold it, and it just isn't worth it to sell. Prices have dropped in half in the past few months. I guess higher ticket (>$20) high shipping items are the first to take hits in this economy. I'm still curious about some of those questions, though.