^ Agree that first year models always have their kinks or aspects that can be improved on. Take the S2000 AP1. I believe the 2000-2001 models had the plastic rear window problem, under powered radio (though you can argue it never did reach an accpetable limit - I thought it was fine =P), and some suspension tweaks (1).
If you can restrain yourself - you can only win by waiting. Lets say Toyota does nail the first model year with no problems at all. Great you can pick up a used one for considerably less. If they overlook somethings - you can buy into the revised model and benefit =)
But then again, there is always that nice feeling of being the first person to own something!
(1):
http://en.wikipedia.org/wiki/Honda_S2000