I do but just the small ones. I was thinking of getting a 120/130 but a 300 or 400 would be cool too.
I just got the mSR-X in the mail today.
Have you considered looking at the MCP-X? I'm not really happy with the original mSR but I'm working it out. It just seems to wander a lot. I got a good deal on the mSR-X which is the newer version. Still fixed pitch but no flybar. Less spinning mass and all that plus it has gyro stability for all axis I believe.
My next one will be a collective pitch machine but again probably one of the micros. I like to do it from my desk for a little break here and there.
The one in the MCP2 livery is actually one of the Force FHP with the lazer tag system on it like the blue camo one is. I'm also trying to get my hands on a few more of those so me and my boys can have bigger battles. They fly the coaxial ones pretty good so far.
One of the other things you can do is move up to a more modern computer radio instead of the radios the RTF models come with. I have a DX8 that I use for my airplanes and helis and the mSR is on that and I'm working on getting the config right for it.