Some good points to think about. I'm really disappointed the 34465A doesn't have any dual display, and that the DMM6500 barely has real buttons and a loudish fan.
So what about the older 3065X firmware's, did they fix stuff but break something else in the newest 1? Is it the type of stuff where 1 user might be fine with an older version, and others might be fine with the latest release ?
If I really want to "cheap-out", I'll get the 34401A, at least they are repairable to a degree, but it's like the steam-age compared to today's DMM's, or well the 1980s