Let's put it this way man, I have about 1,500 into the bike and it is still down to the frame.
BUT, I wouldn't change a thing for the world. Is it a money pit? Yes, but I knew it was going to be when I started it in the first place. I am not the kind of person to change one or two things at a time. If I am going to do it, it is going to get done the right way. I bought the bike and literally 2 days later started tearing it down, not knowing the first thing about a bike. I have however worked on many cars, alot of them being purpose built race cars. I bought the bike because it takes me out of reality for a few hours a week. No thinking about work, women, bills, drama, it puts me in another mindset. If I didn't have this bike I would be in an institute or driving myself up a wall.
Where is the fun in buying a new bike? Is it fun to ride? probably, but where is the broken knuckles, 100's of dollars of empty beer bottles, tears, grease, time, and pride that you put into making it your own?