Originally Posted by
BlazingPedals
I converted a downtube-shifted 7-speed rear to an RSX-shifted bike for the cost of the brifters and some new cabling. For more than that, though, you'd save money and end up with a better product by buying a new(er) bike with the features you want.
Did you already have an indexed drivetrain ?
Converting from a non-indexed drivetrain is more involved as mentioned earlier.
So it all depends on the starting point and desired result.