Retail prices for the Zipp's are high. They can be found (consistently) for much less on eBay and RBR. My experience is that they last longer, require less maintenance, and are lighter than most 'standard' wheels, including handbuilt and/or 'package' wheels like Crossmax/Ksyrium. Admittedly, it's difficult to justify the $$ to try them out, but I'm glad I did. I've consistently raced on them since 2001.Monte said:
Unless they suddenly change their manufacturing processes and (in the process) start turning out some really bad rims, I can see no reason to use anything else for racing or standard xc use. They're a bit narrow for AM/FR type riding.
MC