1)$350-450 trade in value for my M12s, plus a hoodie and a jacket. On top of that he threw in a 1/4" 12pt deep socket set "for free" .
2) M12 tools are great, they work well and can take a lot of abuse (my coworker's Dewalt 12VMax broke within 3 months). But the tools, in my opinion, are not designed for automotive techs.
It was Snap-on's rocker style trigger that made me realized how half-assed the M12 (and every other tool maker trying to get a piece of the automotive repair market) impacts are designed. The conventional drill style direction switch is annoying to use when you're dealing with a rusty fastener that needs constant forward-reverse to loosen up. Also the "lock" position is redundant, or should I say completely useless? I want to be able to pick up my impact and not have to check whether it was in forward or reverse. If Snap-on incorporates this rocker switch onto their air tools I'd sell my old ones in a heartbeat.
I never really liked the M12 grip/handle to begin with, as it was rather thick compared to DeWalt's. The rubber grip gets slippery when comes in contact with lubricants, gets very hard to clean after a day of work, when it's clean, it feels tacky. The rubbers swell and peels off the tool after prolonged exposure to shop chemicals. Yuck.
The ratchet was the worst offender. Not only that you can't grease the head, the direction switch is recessed and there is very little that your fingers can actually grab and operate the switch. The ratchet is also about 1.5 to 2 inches too short to be useful, especially at 3/8" drive. There is no "neck" so the body gets in the way when you're manually breaking stuff loose (reduced swing arc). Speaking of breaking things loose, if the ratchet doesn't feel like it's going to explode in your hands, the battery will pop off. Consider I paid $150CAD+tax for the tool only, the Snap-on was not expensive at $20 more.
3) I work about 10 minutes from the Milwaukee repair/service centre. Although they are fast in turn over (5 days to refurbish your broken tools), they do not cover batteries (the two little tabs on the battery will eventually break off). Plus they don't have loaners available, and they will not sell me anything I needed to do my own repairs. My Snappyman warranties lithium batteries for life (I guess for as long as he's my dealer) and will provide me a loaner until the tool is repaired, without having to step out of my building.