I agree. Take them on longer rides. You need to really think about what you want in a bike, and how/how much you think you will be riding. Then get the one that's most comfortable and will get the job done. I thought I wanted one type of bike, but did some research and did some serious thinking about what I really wanted to do with my bike. That helped me realize that the bike I was originally looking at was not what I really wanted.

Take the time and find the right bike for you!