Sadly, when I do camp, I feel the need to constantly hop and check the group finder for a faster kill, and even so I get bored quickly and just come back later to check again :P I'd grow mad camping the full 1-2 hours on my 7 lvl 100 chars, not to mention the couple lowbies with access to Pandaria.
One efficient solution for me is to check in the morning, but I suspect that's easier for me, since I'm one hour ahead of CE in Romania, while you would be one hour behind in the UK.