What are the popular juicers out there that you have experience with?

I see a lot of Jack LaLanne Power Juicer Pro’s on Craigslist stating, “Used 2–5 times.” If it’s so good why are they selling them?

I’m interested in this model it looks sturdy and has a fairly above average ratings but they got for about 120$ used, and about 40–60$ used on Craigslist.