Yo, Horn man of the Greenest green that can be seen,...
Not only do you have a way with words, but you know I've heard your stuff, which was quite good, etc. I'm really happy to hear you've gotten the ultra-high-techy-A2816, and I wish you good luck and good recordings. I can't wait to hear something you've recorded on the A2816, and it seems so exciting, to have the latest high tech recorder, I'm sure.
No doubt, things seem to get more high-techy all the time, and things can get complicated. You know where I stand on recording technology, but I'll agree with you wholeheartedly, when you say, "GREAT GEAR IS SIMPLE GEAR".
That's the whole truth, right there.
As far as obsolescence goes, I think you have to pick your best format, at the time, and go with it, for the long haul. No doubt, something new will come out in six months, and you should try to get your mind off 'gear envy', by putting your present 'almost-state-of-the-art' gear to good use. Use it 'til you've gotten your best use out of it, or have truly outgrown it.
In other words, pick your format, and drive the wheels off it.
Concentrate on the music, that's what counts most, and the gear is a transient/relative thing. A great song will transcend the medium,... if you know what I mean.