Thanks for sharing your opinion guys, I really appreciate it!
I'd drop the 3 .coms but I'm not very sure about dropping the.pro as I won it through an auction war against another bidder, and also see names like houseshare.pro and homeshare.pro being sold on Flippa for close to $200 each.
Maybe I'll try some quick outbound on the .pro and see if I get any bites...