It does seem to be an inverse relationship that having less toys out, actually leads to more playing with those toys.
This should not surprise me as I've long thought we had too much stuff, and that it got in the way of enjoying life. I'm a proponent of ease of life, and fun experiences...low bills and lots of space and eating out all encourage this more than high bills, eating in (except when its fun which is most of the time--how pathetic is that? One of the high points of the day is my making dinner), and storing bundles of stuff.
I need to go through our stuff again and throw/donate more of it.