You can buy a new saddle. It may be good (for you). It may not. If you're having saddle problems find an LBS or one of the higher-end chains that offers a return policy or has loaner saddles; yes, you'll pay somewhat more, but at least you'll have a shot at finding a saddle. If you're not bike weight obsessed you could consider one of the leather saddles (Brooks, Selle An-atomica, etc.) which are more adjustable and serve many long distance riders well, but be prepared for snickers from your roadie friends.