I've tried other projects, but enjoyed this one the most by far.
Reasons off the top of my head:
New Parts to work with - No Greasy old parts to remove first before installing new
No Rust
No Body on the frame as I build - Being 6'4", this one was a HUGE reason I took it on. I loved that I could work from all directions on the build without having to consider the body while working.
Cheap parts to purchase at the Auto Parts store - mustang parts ($) vs classic corvette parts ($$$)
great forum support by people who know exactly what kind of help you need when asking.
If your considering something less expensive but a similar experience, an old Jeep would be the closest similarity. Simple wiring, easy to get around, plenty of cheap parts, lots of knowledge out there, AND FUN WHEN YOU'RE DONE! Plus the "Jeep Wave" is always enjoyable