Since you like Snapper, how about an electric start Snapper?

I had a yardman with a BS that had this button you pushed down and pulled the bar to the handle and it spun the engine and started. Most of the time. If it failed however, you had to give it a few pulls, and "rewind" it so to speak. Then it usually started. I got it used from a friends dad, now my son in law is using it.
I don't see it offered anymore in the US. I found some UK websites with it. Perhaps it was deemed too dangerous. Kids could walk up and push the button and start it. It had a safety key, but I never removed it, and neither did my buddies dad. My grandkids are supervised when around my place. No one is allowed in Pa pa's shed, period!
If the wife is going to use it the electric start sounds like a good idea.
The BS on my Toro is guaranteed to start on the second pull for three years. That's longer than the mower is warranted for!...lol
I guess for the wife,my vote is key start.