I am yet to purchase something like this, but I also get a little bored of my background. I rotate prints, and change furniture around. As well as that, I am thinking of giving backdrops a try. It looks like the backdrops themselves can run as low as around $15- $20, and a stand would only be about $50. Maybe someone who has tried these might chime in though, because without having personal experience of them I don't wanna recommend them, or anything, (in case they have some kind of major drawback that I am not aware of). So I'm throwing it out there as a possible idea, but not saying that I know they are good from experience or anything.
If you search photo backdrops on amazon, you will see what I am talking about.
ETA; just saw a 3ft by 5ft one for only $7. They have all kinds of designs, backgrounds and colors, it's pretty cool...