I'm one of those people who is always window shopping on eBay. You never know when you might see a bargain - or a trap! So I've been keeping an eye on the prices of secondhand M bodies. Here are some notes. M6 - Good ones go for over $4,000. But a new MP or M-A are $7,500 and $7,350 respectively. What makes more sense to you? I think I'd rather save up and get one of the newer models. M4 - I saw a good one for $3,000. Not bad. That's less than half the price of a new M-A. And they are unique in that they have brass gears - some people like those details. M8 - These are starting to creep up towards $3,000. Worth it? Maybe a little overpriced but not stupidly so. I think $2,500 would be the most I'd pay for a very good one. M9 - Creeping up again. About the same as a good M6. Worth it? No - see immediately below. M typ 240 - Good ones go for over $4,000. Usually closer to $5,000. A much, much better buy than the M9. The M9 is not a bad camera per se but the prices are too rich.