Throwing my $.02 out there...
I bought a 1973 Precision in 2012. Natural body and maple fretboard. It was in good shape, mostly original with a new truss rod and DiMarzio PAF's. I didn't play it much and it sounded ok at best. It did setup nice with very low action. It weighs about 9.5#.
As time went on I started playing it more and more, mostly at home and church. Then I had to start tweaking it. The capacitor died, so I took that opportunity to drop in a set of Fender Custom Shop 62 pickups, new wiring and pots. Next thing that happened is the next started shifting. I did the screen in the pocket trick, and raised the saddles and pickups a bit.
It used to sound good. Now it sounds absolutely amazing. Every time I play I get compliments on tone. It took some work though, and next up are new frets and nut.
I see where some of the complaints on 70's Fenders could have merit. Mine has a loose neck pocket. But if that's the worst thing about this guitar I'll take it, because it has mojo and has that classic Precision grind and punch. Is mine representative of early 70's? Probably.