The SRM power meter cost nearly TWICE what I paid for my Felt F55, (but I got a pretty good deal on the bike.) I'd write the check again without a second thought. It's transformed my training & riding. My FTP is currently 285W and I'm on-track to crack 300W before the end of the year.
The Dura Ace 7850 CL wheels cost about half what I paid for the same bike, and I got the strong-dollar/weak-Euro/free shipping discount, and I'd do it again. My current wheels are solid, but I still like having a set of event wheels for centuries. They're slicker than owl-poo.
And I don't even race.