Out of the 12 guitars I own, 7 have set necks, 5 have bolt-ons. Unfortunately, one of the bolt-on necks is my 1996 Epi doubleneck...but I got a great deal on it, and I had to snap it up. It plays and sounds great, but hitting that high D is a real stretch!
To me, set-necks feel better, have more resonance, and offer easier access to the upper frets.
But I love my bolt-on neck guitars, too. If you love to tinker with your guitars, bolt-on neck guitars are like an old Chevy. If you have the right tools and the proper Chilton's manual, you can perform pretty much any repair or modification on it.