Don't think there is any correlation b/w price and comfort with saddles. More to do with what shape/style fits your ass, regardless of price. Trying them out is the best way to decide - if possible.
That being said, myself and the guys I most regularly ride with are all on Fizik Ariones, which seemed to be the "saddle to have" recently, (see various threads on same) but all are happy with the comfort factor.

Recently got a Specialized split option on the MTB (broke existing saddle up in Echuca & it was the best the shop had) and found it pretty comfortable so far. Only cost about $100 too.