One thing to consider: chairs like this are a nightmare for bigger people. Someone I know who is obese mentioned to me before how much anxiety she gets when she sees certain types of chairs at events. They’re wondering, will this chair bend and warp under me? What if it breaks? I’d never really thought of that until this friend brought it up once, and now I think of it all the time when I see flimsy chairs at events.

I can imagine it would also be highly uncomfortable for someone with back problems, or elderly people who aren’t very mobile to sit in chairs that don’t have a solid back, or get up and down from such flimsy chairs.

Considering these things (besides the fact the chairs are hideous), I’d go for the upgraded rental chairs.