I like Fizik Arione saddles. I know they work for me. So, whenever I buy a new bike, the first thing I do is put an Arione on it. I would bet 95% of people who ride more than 3 or 4 miles a day do not use the stock saddle and know when they buy that they need to replace the saddle.

Just look at all the "I love my Brooks" threads in this forum. If you go to the roadie forum you'll also find "I love my Arione", "I love my Toupe", etc threads.