Originally Posted by
ptle
If you're using them strictly for racing, I'd go with tubulars.
If you're going to do them on group rides, stick with clinchers.
I think the cheapest 50mm carbon clinchers (at a decent weight) under $1000 are Neuvation's http://www.neuvationcycling.com/wheels.html
For $927 you can get a set of 50mm carbon clinchers that weigh 1600g
For just $73 dollars more, you can get
these tubulars (1471 grams) or
these clinchers (which in my opinion, are crazy heavy - 1879 grams).