Hmm. My main hobby right now is hiking. I still enjoy vintage hifi. I used to do a lot of travel to see live music. I suppose a holy grail for the music would have been to see a show in all 50 states, all Canadian provinces, each hemisphere, each continent or some other list like that. I count I've seen shows in 27 states so far.

I'm not really interested in any of the uber hifi grails. I suppose I'd like to check out a nice single ended tube amp with 300B outputs, especially if I could A/B some vintage Western Electric tubes against some modern ones. But owning something like that? Nah. I'd like to get a nice McIntosh vintage setup like a C22 preamp and a pair of MC75 power amps, but those are bought and sold on eBay all the time. The cost is high but not ludicrous. I just don't feel like spending the money; they aren't worth that much to me.

Hiking, there's no way around it. The holy grail is Mount Everest. I don't really have an interest in technical mountaineering, especially high altitude. But it's impossible to hike to the summit of a 5000' mountain and not daydream about climbing a 29,000' one.