Originally Posted by MattGoose
I also have a young child who gets into everything, absolutely everything so stability of the speaker is important. What does a stable pair of stands cost? Hardwood floor.
Stable is relative and acceptable appearance is as well. I'll have to suggest google.
The Polk RTI A1 seems a like a great fit and I think I can wall mount it?
Wall mounting may be an excellent solution for you. Polk is a popular brand and may do well for you. I have no personal experience with those speakers, but I'll bet someone here does.
Are they really going to sound better than a full size floor speaker?
Neither "floor speaker" nor "bookshelf" inherently sounds better than the other.
How important is it to get bookshelves off the floor?
Reasonably important. You won't get ear-alignment from the floor, and you are going to have issues with reflections from the floor at that distance.