If it was 10spd ultegra maybe, but it's not worth 2grand with 9spd ultegra. Mostly it's just the old ultegra cranks, i know from experience they definitly aren't anywhere near the stiffest, the rest of the 9spd drivetrain is pretty solid, and the caad7 frame is good, but i'd prefer to be on the newer caad8
For comparison, here's a bike my LBS has on sale, 2300$ cdn, 2005 r1000, ultegra 10spd, better cranks, same wheels, better frame... which is similar to the deal i got.
2300$ cdn
Frame CAAD8 Optimo
Fork Slice Premium
Rear Shock N/A
Rims Mavic Ksyrium Elite
Hubs Mavic Ksyrium Elite
Spokes Mavic Ksyrium Elite
Tires Hutchinson Top Speed foldable, 700 x 23c
Pedals N/A
Crank TruVatiV Rouleur Carbon Triple, 30/42/52
Chain Shimano Ultegra 10-speed
Rear Cogs Shimano Ultegra, 12-25
Bottom Bracket TruVatiV Giga X Drive
Front Derailleur Shimano Ultegra
Rear Derailleur Shimano Ultegra
Shifters Shimano Ultegra
Handlebars FSA RD-250 Anatomic
Stem Cannondale 3-D Forged
Headset FSA Alloy integrated
Brakeset Shimano Ultegra
Brakelevers Shimano Ultegra
Saddle Fi'zi:k Poggio, Eco, Ti
Seat Post FSA SL-K Carbon w/Nano-Pro adjustment
Colors Patriot Blue (gloss) (BLU).
Jet Black (matte) (BBQ).
At their price i'd ask about upgrading the cranks, since the rest of the bike is pretty solid. If they're not a big concern to you i'd negotiate on the price a bit, 2 grand for a 2 year old bike is quite a bit and they might be open to price talks just to get rid of the thing. Personally i wouldn't go above 1800$ Cdn.