I'm sure the bike it self is just as fun to ride....but personally, as someone who's not super rich I say screw the crappy italian engines....gimme a silky smooth Japanese inline 4 (or twin)
67,000 miles on my CB919; checked for the first time at 67k with no adjustment. Perfect clearance. Though the book calls for it every 16k. I bet the damn thing will do 250,000 miles before I worry about valves. All I do is change the damn oil and it keeps going....just as the legend says!
Of course I never shift above 6k (too much low end power) and the bike is cruising a relaxed 3500 on the highway which is almost as slow as a car engine....so yeah the valves probably should be good forever with no engine racing.