It's sad that most people including movie editing tools developers and video hosting sites care less about 60fps. I gave up after finding no MP4 editing software that supports 60fps. For the 720p60 videos I shoot, I limit my video-editing to simple cutting with basic MP4 video-cutting software in order to keep 60fps.
Depending on your camcorder, you may or may not benefit from shooting 720p60 even if you convert to 720p30 in the end. My cheap Aiptek ActionHD does 720p30, 720p60, and 1080p30, with increasing bitrate respectively. If I know my clip is going to go on youtube I'll shoot in 1080p30 for its highest bitrate. And because 720p60 runs higher bitrate than 720p30, it still seems better if I shoot in 720p60 and convert it to 720p30 than to shoot 720p30.
Depending on your camcorder, you may or may not benefit from shooting 720p60 even if you convert to 720p30 in the end. My cheap Aiptek ActionHD does 720p30, 720p60, and 1080p30, with increasing bitrate respectively. If I know my clip is going to go on youtube I'll shoot in 1080p30 for its highest bitrate. And because 720p60 runs higher bitrate than 720p30, it still seems better if I shoot in 720p60 and convert it to 720p30 than to shoot 720p30.
