Start-up time is important for me because I'm not going to sit there for a long time waiting for my computer to turn on if I have a limited amount of time and need to get something done fast. With my Mac it barely ever freezes, and I'm able to change my OS from Windows 7 or XP with my Mac using Bootcamp, it's totally worth it. I guess I really like my Mac too because it's convenient. I was raised with them and since my parents are both doctors, they need something that can do the job fast and they commonly use word processing programs to type up notes of their patients. They can't wait 5 minutes for a computer to start up since they have limited time and they can't waste time at appointments.