The Scooby Doo house looks like it would be potentially nice, if you gave it a spray paint and tidy up, but it's hard to judge if it exists beyond a facade - I guess good for building street scenes but not so much for play/building interiors. The other problem is that it's a big set that includes the van, so it will probably be on the expensive side. Hopefully it'll be one that turns up on the second hand market a lot (I feel like I see the Ghostbusters stuff a lot, and that's how I'll pick up the firehouse when I get around to it).