Wow, FramerInTraining, you're certainly entitled to your opinion, but that's a rather broad brush you're painting with. It's unfortunate you had a bad experience with a piece of used equipment, or with a particular dealer, but I disagree with your blanket assessment. As for Logan, a company whose mat cutters our school has and continues to use: Yes, they make some products that are merely hobbyist level, and are priced accordingly, but their 800 Series "Platinum Edge" mat cutters are, IMO, one of the best in the industry, and a great value too.
For many years, I sold, repaired and reconditioned used framing equipment. I've also counseled our students on how to find and purchase, and sometimes to avoid, used equipment through brokers, Craigslist, Ebay, and other sources. Here's my thoughts on used equipment.
Most framing equipment is pretty simple stuff. This includes mat cutters, glass and board cutters, moulding choppers, saw systems designed for framing, and mechanical mounting presses. Frame joiners are somewhat more complicated but tremendously reliable. Also, one must keep in mind that framers are generally very meticulous people who take care of their tools. This is not to say that all used equipment is good equipment -- some is too old and/or obsolete; some is poorly maintained; some is worn out. However, every piece of framing equipment becomes used the day after you buy it, and every framer is employing used equipment of various age, quality and degree of wear. Visit any frameshop and you're likely to find gear that's a decade, or more, old.
Purchasing used equipment can save beginning, and experienced, framers a substantial amount of money. It also leaves you with additional capital that can be used for other expenses. This is not to say that if you have substantial financial resources, or are simply uncomfortable with the idea of buying used, that you shouldn't consider buying new, but it's not mandatory, and one shouldn't feel intimidated about buying equipment simply because it's not new.