A few years ago I was having a new saddle fitted on my bike when the LBS fit expert/manager told me I'd be more comfortable with a different bike. In my case he was recommending a carbon WSD road bike over the aluminum men's bike I had at the time. I figured he was just being a good salesperson. But a week or so later I thought about it while doing a hilly metric century, and by the end of the ride I decided to try the new bike. And he was right, I was more comfortable. I've never regretted getting it.