For me, modeling is too much fun in all aspects - not just fun flying or profiles. I have on hand at any one time at least 15 to 20 ready to fly planes (all ready to go at my whim to fly) ranging from my 3 or 4 profile/fun flies, couple of full house 1/2A jobs, 3 giant scale gassers (aerobatic), some regular sport models in sizes from .15 to .91, and of course I fly SAM old timers also, have 3 or 4 of them. I also have at least one heli to fly.
Just got into jets this pastyear and I fly my Super Reaper turbine powered jet for fun.

ALL different planes to fly, youknow VARIETY IS THE SPICE OF LIFE! Or maybe thats why inover 20 years of flying I never once thought about quitting, or got burned out. Just keep flying different planes and you stay fresh and interested... JMHO!

Its all about having fun...

BUT that being said, If I had to choose one type of plane to fly only, it would definitely be a profile fun fly, theyare just toomuch fun, capable of anything and easy to maintain and haul around.

AJC