I called in to see Keith at Aeropaint a couple of weeks ago. He's going strong!
The repaint issue depends a bit on your objective. The Lance that Keith repainted for us cost about $40k including a single piece windscreen and some other speed mods, but we picked up a real 8 knots. A lot of the time (and money) was in fibreglass work. The wavy fibreglass components like wigtips take a lot of sanding hours to make nice and smooth. We took it back to bare metal and dealt with some corrosion issues & replaced some working rivets. We also replaced every exposed nut bot and screw. But at the end of it, we got an airframe that I have equal confidence in as a new one together with a paint job that still looks new 5 years later.
The other end of the spectrum is to rub the gloss off the existing paint and put another coat on the top. There are some guys who argue that this is better because it is less invasive.