Alkylate fuel is clearly much more expensive an option than I need.
I run through about 40 gallons of gasoline a year, powering all the infernal combustion engines that I use to manage my small acreage. Two small tractors, the DR all terrain mower, pressure washer, air compressor, chain saws, etc. It'll be easy to cycle the stabilized fuel through those after it's been in storage 12 or 16 months, then refresh...assuming the generator does not eat it first, which is not all that likely, most years anyway.
On another note...I'll report how much better than average the operator's manual for the WEN generator is. Very comprehensive. Good pictures. Clearly written, obviously by a native English speaker rather than a translation from something else...and only in English, not the now common 2 or 3 alternate language versions as well.