...sometimes (almost always, actually) you learn things after the release of a software or hardware product. Users are doing things QA sweeps didn't envision. And goofs (my camp) take things apart, or develop ancillary devices, submerge it in banana cream...it's endless.
Sometimes there's an incremental improvement you could push out, if the distributed products can communicate with mother.
Sometimes there is a middle path, wherein you could "grab" an update online, and apply it via USB, for example.
Absent options above, the new knowledge may get applied to a new product. Sometimes people prefer the old product. That's the game.
Some folks treat Dave like a museum piece, never to be touched or improved upon, just to be admired. Ah, the Mona Lisa's smile.
I admire the Dave. I still own one. And an MScaler. I had a Qutest too. All fab stuff. But perfect? I don't think so. But excellent? Oh yes!
My point (if I have one): treat the Dave like the excellent product it is, instead of a holy relic. It's as perfect as it needed to be...