when i first started i was on nearly $1500 a week and had no bills. i was in a share house so my out goings was less than $100/week so i had alot of disposable income. i didnt live a boring life either. lunch everyday was something like nandos, i wouldnt think twice spending $250 on a t shirt and i would never really save for anything. i'd surf yahoo and send streeter some money and cool parts would rock up at my house. it was a good life, while it lasted.
i got to the point that i would have my car complete with a custom tail shaft and a body re wire but i pulled the pin. less than $2000 in my build and i stopped. at that stage it was all bolt in parts and i could easily sell the parts without loosing too much, whereas the wiring was money thrown away.
i decided to stop because with my current lifestyle i could not afford to take it to the track to use it. my cars dont have tow bars, i dont have a trailer, if nothing broke at the track i would need around $500 every tiem i take it out atleast. now with a wife and kid im happy i dabbled in cars and its amazing how much my interpretation has changed for my "ultimate car" from when i was 17 to now (24).
i wasted alot of money but i was in the position to do so. now i'v grown up i dont regret it too much. i wish i had driven more than i built. i wanted to build it from the ground up but realistically i should have bought something finished and had my fun. but now everything is sold i am about to purchase a brand new motorbike which all up will cost around $20 000 by the time i modify it a little. i may be swapping on evil for another but the bike will cost less, retain its value because im not getting something too common and it wont break every second time i take it out to the hills/track.
i'v kinda lost track but thats my story. do it if you can while you can, but at some stage your priorities will change. have fun