Well, after considerable consternating and other assorted deliberations, I went with the Hantek 5072P.
http://www.hantek.com/en/productdetail_97.htmlWhy?
1. Traditional user interface. Better to relate to the numerous teaching videos for a noob. And old people prefer knobs, which is what I am - an old person, (not a knob.) This noob likes knobs. Kind of catchy.
2. Changing functions on the touch screen blanks out what is being measured, or so it appears on the videos and photos. Not so with the knobby interface.
3. The Hantek is more likely to achieve its bandwidth spec, and other specs, which may be ~double the touchscreen bunch.
4. If I croak before my wife does, the traditional knobby layout is likely to be easier to sell - or it will at least be easier to identify what the device is.
5. I don't anticipate any need for portability. It stays on the bench.
6. I reviewed the Hantek's 72 page manual which seems quite helpful. Haven't seen the Frinsi or equiv. manual online.
As an aside, Ali Express sells this for less than Amazon, but their shipping cost is $50+, which makes it $35 >Amazon.
If the touchscreen O-scope is a "semi-accurate, semi-"toy" useful for some things" device, then the Hantek is a "low end, utilitarian, slightly more accurate, useful for a few more things" device.