Ive flown 80 hours in my plane in 9 months and its cost me about 1100 in fuel(rotax 912) 800 in insurance and 100 maintenance, hangarage 1440 and spent probably 1000 in fuel getting too and from the airfield so roughly £4800 with permit etc.
Its a 20k plane but i can see how some old cessna would burn that in fuel in 3 months!!
Thats why planes are cheap as chips most cant afford to run them!!