I'm more geared up to the same old stuff than to completely new experiences, but I get bored doing anything twice in exactly the same way, so for example I wouldn't much enjoy recording an album of very similar songs, I prefer to move on a bit with every recording.
I'm sure there are great benefits to new experiences, but in my experience life usually forces me into them, so I don't need to go looking for them. And it can be very stressful. I've always somehow managed to cope when I've been severely knocked out of my routine, but it's certainly given me moments of anger, frustration, and complete and utter despondency. Last time it happened, I spent several minutes saying "There's no way out, I'm finished, I'm dead." I don't get like that very often. I recovered and went kind of manic, then went despondent again, then manic, and eventually stabilised. So I guess new experiences shouldn't be too extreme.