I recently did a lens trade with MPB. EVERYTHING from receiving a quote, doing the trade and receiving the upgraded lens was top-notch. MPB stayed in touch, and shipping of my old lens to them was on their dime. Could I have sold my old lens for more than MPB offered me? Probably...but it's just like the difference between trading IN a car (wholesale $) and selling it on your own (trade-in value). Could I have paid less for the new lens? Probably, but again, the same thing. The convenience of knowing that I had a solid offer on my trade-in, not having to wait for possibly days/weeks for it to sell on my own MORE than made up for the offers I received. MPB reached out to me when my trade-in arrived. I had seen other reviews that indicated it might be up to 11 days before a trade-in evaluation was completed. Within a day and a half of MPB receiving my old lens, I got an email to finalize the deal. QUICK turnaround...thanks, MPB! The lens I traded for was advertised as being in "like new" condition. That's exactly what I found when I opened the box...nary a blemish or mark, superb glass, in the original box, with all accessories included. When it was time for them to ship to me, I opted for 2-day delivery...and that's Brooklyn NY to Central Oregon! It showed up on time and I'm a happy shooter now. If YOU are in the market for buying used bodies or lenses, or are interested in trading, I'd highly recommend you do some business with MPB...I know I will in the future as the need arises.