This thread is quite surprising to me... last club I was in it was mostly full of people 40+ years old... it could also be that the population that actually posts on message boards is comprised of younger people. Anyway, I'm 28 and I started flying in 1995... started building my first plane in 93. I usually only fly a couple planes each season... tend to get stuck trying to improve on one or the other, or I gut them for gear for newer projects. I'll try to list my planes chronologically.

Midwest Aerostar 20 /OS 25FP(x2, crashed 1st after about 30 flights, retired 2nd one)
Hobby-Lobby Telestar /OS 60FP (I think that's the name of it, they don't make this plane anymore)
Hobbico Avistar 40 /OS 40LA
Sig Wonder /Enya .19 (gutted, rebuilding to remove oil soaked wood)
GP Ultrasport 40 /OS 46FX (sold)
Midwest Malibu 40 /TT 46BB (retired)
Midwest P-51 (sold before finishing)
Scratch Built Cosmo .25 /ASP 46BB (forgot original kit's manufacturer, currently rebuilding to fit Webra .61)
HoB Stick 40, (clipped the wings to 48", killed the dihederal) /OS40LA (sold)
Sig Fazer /ASP 46BB (Re-kitted on 3rd flight)
Sig Somethin' Extra /Webra .61 (still flying)
Dynaflite 1/4 Scale Super Cub /US Engines 41cc (never flew, sold it to a club member)
GP Spirit
GP Super Sportster EP (still flying)
Art-Tech Cap 231 /Rimfire 28-30-950 (haven't flown yet)
HoB P51 (1/12 scale, currently building, converting to electric)
Carl Goldberg Sukhoi 26MX /OS 120AX (been half built for 5 years)
StarMax F-5E /Typhoon 2W-25 (currently modifying/building)

im 13 flying for 5 years

kadet senior
lanier caprice
sig wonder-building
a big stick
a couple trainers and a lot more

peakmodel 330L 50cc with DL50
hokusei PROFILE PRIMUS 50z with ys63
peakmodel Ultimate-3D with DL50

I'm 30 years old.fly more than 10 years.