You've probably gotten a pretty good idea of at least what people are asking from the information you've seen. There are currently several MH3 and MH3-48 ads on soundbroker.com and the prices being asked on are interesting as some people seem to be asking almost full original price, around $24k to $30k depending on the options included such as
meter bridge, spare
power supply,
road case and so on. At the other end of the spectrum there are a couple used MH3-48s in "superb" condition listed for $7k to $8k and also a couple in between those extremes.
The description for one soundbroker.com ad that is essentially asking for full original price claims that
mixer has been in use for 18 months in a church and "...still has manufacturer's warranty", which is interesting since according the the MH3
manual the warranty is 12 months and not transferable. I get the impression that ad may be someone who wants a new mixing
console but to do that has to
cover the entire cost of the new
console from the sale of the existing
mixer. And that may apply to others as well where the price being asked represents what they need or want to get in order for it to make sense for them to part with their MH3 rather than what is actually a fair value for it.
Other than a few 'classic' consoles that show up on many tech riders, as already stated, most large format analog consoles have seen a pretty big
drop in value due to digital consoles. The multiple use
FOH/
monitor format of the MH3 gives it a potentially larger audience and while you probably won't find many tech riders asking for an MH3, you'll probably also find few people refusing it. The snapshot automation is a plus for some applications but is nowhere near the scene recall of modern digital consoles. In general, the
console likely has more value for someone looking to directly replace or upgrade an existing large format analog
console than it does for someone looking to expand capabilities or for a new
system and that means an increasingly smaller market.