Yeah, it's definitely not for everyone. If you want to be able to use the walkie-talkies outside of their use in the helmet then I definitely wouldn't recommend it.
On another note: I just started playing with software radio's last week, and may want to get a software radio which would allow it to operate as a walki-talkie, traditional music radio, police scanner, or really interact with anything that uses radio signals. Problem is I don't think ones that can transmit as well are cheap, plus I don't have a HAM license yet.