Wow. I'm stupified, really. Yep, the one with the window in front scares the bejeebers out of me. Picking up bad habits aside, from a caring parent point of view, why would people put their children in situations like that?!
"My ds has wanted rings for years. We have refused! "
I don't want to speak for anyone here, but what I understood Skschlag to be saying was not about the rings specifically, but more to point out that all kids wants things, but we don't have to let them have them... Most if not all of our kids have begged us for gym equipment for the home and there's a lot of wisdom on here about what is sensible and what is not - both from a coaching point of view and from a parental 'waste of money point of view'. It might be worth reading through old threads to get a sense of what people have said, as there is a lot of consensus nad that doesn't happen often on here!
I see no harm in a floor beam, with a good mat and plenty of space around it. I don't know about how much use a toddler would get out of it, but my 9 year old dd has used hers to work on routines, spins and jumps from time to time. It was passed on by someone else, I wouldn't say she's justified paying for a new one, but it has been worth having a free one.
The other thing we have is a chin up bar which was about $10 and fixes in the doorway. She has used that way more than the beam - to do chin ups and leg lifts and to learn her pullover in the early days. She still uses it to break in new handguards and do split hangs and chin ups. I'd say it gets swung from most days, so a great piece of kit.