ergh
i got a used mx8000 a few years ago and it was working great for me until a little while ago. now i am getting random clicks and pops on some channels. it's not a huge deal and it doesn't happen all the time, but i can tell that it's starting to go.
to get around the problem, i decided to get another mx8000 and link them together. bad decision on my part. i got it off of ebay and it was garbage. certain buttons wouldn't stay depressed, and sometimes the main LR bus would just cut out for a few seconds at a time.
i got each of them for about $500 w/ the meterbridge so i can't really complain. that's less than one used mackie 24x8.
i haven't ever really used a mackie so i can't compare, but my original board held up for quite some time, especially after buying it used from a dirty punk rock club.