you should try it out- know if it's something you could use before dropping $100! visit local dealers and 'test drive' machines before deciding you want to buy a used machine- and, if buying used always check them out- before- unless you just have lots of 'disposable income' to share and like to take risks. there are many used machines that work great for a lot less than $100; then again, there are as many that are a lot more- but you should know what you are getting before committing- I would keep looking if it were me. the 'owner' should be willing to take it out of the box & at least show many pictures, and the machine 'in action' - if they are so far away and you state- (and honestly I wouldn't know how to work it anyhow. ) how will you learn to use it? if you purchase locally at least you can get some 'instruction, help' along the way.