Point is, I ended up getting into bouldering. If you want to send a bouldering problem, you have to spend a while actually planning out your movements, because if you waste time trying to figure out your next move in the middle of all but the easiest problems, you'll run out of energy before completing the problem. Like lifting, you need rest time between climbs, but you can spend that time planning out your next attempt. Only downside is that indoor bouldering walls tend to be crowded most of the time, and outdoor bouldering can require a bit of a drive depending on where you live.
Still, I find it a lot more stimulating than lifting; I actually look forward to bouldering, while lifting still felt like a chore even after 8 months of doing it.
edit: I should add that I've only been bouldering regularly for about 2 months, and mostly at an indoor gym.