I agree on all points and on the following one I am guilty as charged
"It isn't cost effective to replace the batteries in the smaller UPS's, either. When the battery fails the whole thing gets tossed."
Yep you are right, I work for a small firm, doing numrous things, including running the servers which have UPS. It is not cost effective for me to buy new batteries for small UPS units. Wiish it were, but nope. I can have someone expend 2 hours on the battery/learn how to install etc (a lot of time they change and are not standard). So I lose the employee time for 2 hours..., billable cost about 250$ , for about , at most a 100$ unit charge.
I have a ton of dead UPS units in the shop, just needing batteries (most are msw , so don't email me , grin)
Sorry, but that is the way it is for us....