I bought one for this very reason, to single hand in the light stuff, and have a boat that was able to handle two crew and kids on our local lake. Granted the lake is really two small for the boat, but man do heads turn when I go flying by the college sailing team. They are not indestructable however! Many things have been replaced; running rigging, transom mounts, standing rigging, all of which would eventually need replacement.
My boat was Worrel boat, and thus had been reinforced in several area's with the help of Randy Smyth. As for speed well we chased down a 90 foot mono racing around Fishers Island earlier this year and had just blown by it when the rear shroud swag failed we lost the mast.
As for righting the boat I use a water bag when single handing as my 200 lbs is just not enough to get the boat back up. Every once and awhile the sailing team will come to my rescue!
At $4000 I would buy it and not think twice. If you don't want spin launcher I will take it!
Jon