Just bought 15 Geko 201s...
for our school (got a grant). They are easy to use, hook up to the PC (cable extra, of course) and seem as accurate as my SportTrack. 12 channels plus WAAS enabled so they should be as accurate as any consumer grade unit.
Only downside I can see is that the display is rather small, but for the price, I think they are fine.
Of course, I've had good luck with my Magellan SportTrack as well, and wouldn't hesitate to buy another.
For the cost of new units today, I don't think I'd expend many brain waves in considering repair options for the old unit ;)