I had an LDR, of sorts, once. It was just a girl with whom I stayed in contact regularly, and "squired around" when she was in town. I never went to see her, I saw other women, and I never considered her as more than an occasional playmate. Eventually, she made it clear that she wanted a real relationship. I made it clear to her that I couldn't seriously consider it, unless she moved to where I was, but not before.I've never bothered with a LDR unless the chick had something my local options lacked, and I've never bothered posting about a woman that didn't have me compromised at some level.
LDRs are fine, if you don't get emotionally invested. They may even be preferable, because they have instant expiration dates. It's like a hooker you don't need to PAY to go away.
If you really don't want a serious relationship, with a girl who's always under foot, and you want to be free to see whomever you want, guilt-free, LDRs might even be ideal.