Ha! That's part of the problem too....it lasts for so dang long. I've probably had 2 jars of it in 15 years, the second jar when they converted to plastic (one before it was glass). It does make any leather look new again and stay that way for a long time.
I was in Academy sports yesterday and noticed about 10 different kinds of glop for shoes, including a Sno-Seal knockoff.
Sno-Seal and Nikwax used to corner the conditioner markets....no stores near me carried either one.

I too don't hike in leather boots anymore but my trail work boots, western boots, casual shoes, are all leather.

The MSDS says Sno-Seal is 35% Wax (beeswax) and 65% mineral spirits. That should be easy enough!