Some just don't have the budget for it at the time. Some don't have the space. Every situation is different. Some machines can be a little more technical than others want to get into. Seriously, it all boils down to many factors. Some people will never understand. It's also just a matter of preference. Some with larger machines are in it for the money, maybe their only source of income, therefore the larger machines. Again every situation is different. Not hard for most people to understand.