I honestly don't even think much about it. I've really enjoyed putting together the system I have; trying out various things, buying and selling until I got something that I'm really happy with. For the most part, even with my pretty modest collection of gear, I feel like I'm there so I'm not thinking so much of "endgame." When I'm sitting in the sweet spot, playing a well recorded album, I feel like I'm more or less hearing what I want out of it. I don't really have any friends that are really rabid hi-fi folks (at least none much more so than myself) so I don't have an opportunity to hear anything much more high end than what I've got... which might be fun, but even if it were noticeably better than what I've got, I don't think that it would trigger much gear lust for me at this point. I feel like at this point, I would need to spend significantly more than what I have thus far to get real improvements and/or treat the room, which I'm not likely to do... so "endgame" is really what I've got right now!