Ok, I just want to follow your train of thought. Firstly, you want "upgrades" such as a menu driven interface. You don't want to look up data (and maybe press the button more than once). A magic database that will input any and all variables for you. (Sounds like more mouse clicks than button pushes.)
Then you don't want the complication of a fully automatic (turn table perhaps?) unit. But, you do like the idea of adding some sort of automatic lever system to put the cases in and out of the machine.
Then, you say that all of these "upgrades" might not be worth it because of the use of the machine might be limited. Oh, and I almost forgot, it's too expensive for you.
Have I missed anything?
Well, for those of us who actually have one. And have used it. Here's my thoughts. It's the easiest thing I've ever used. After I sent off my samples and got my results, I have one setting for each of the two (yes, only 2) cases that I anneal (soon to be 3). (I guess the "upgrade" thingy above is a moot point.)
It is really fast. Really no need to "speed it up" with magical mechanical devices like levers and auto feeders to bugger things up.
There's no propellant needed to heat things up. As I am also a radio enthusiast, I can appreciate the power of electricity to warm things. This thing is just like one of my tube amplifiers. Sweet!!
Now, I know it's pricey. Almost $1500 is not for everyone. But neither are $10k rifle builds. But this thing has got to be the coolest (sorry for the unintended pun) thing I have purchased yet for this hobby. ymmv