Glenn, it sounds like you got a great deal. IMO the Hobies handle the UV rays relatively well; I've seen them sit in the sun for about 18 months with no serious damage -- just stretched side pockets and stiff bungees. I store mine in the garage anyway to keep them clean and ready to go.
It wouldn't hurt to check the serial # on your '09 Adventure -- the last two digits tell the model year. Or you can just look to see that it has the "Click N Go" Drive lock system (first year was 2009). This was an important change.
I mention this because the Drive as you described it is typically from 2008 (if the Drive
drums look identical to your '11 Drive), or earlier (if the drum style is different -- see below).

As long as you have the '08 or newer Drive you're in good shape (with the change you made). If your Adventure Drive looks like the one on the left, someone may have accidentally switched drives and you should discuss it with the dealer.
Enjoy your new Hobies!
