Amazon has a Skilz indoor hoop with a shatterproof polycarbonate backboard and a steel springed rim for $14.99. If you caught this post late, the highest price it goes to is $29.99 and it is worth every penny even at that price. If you have Amazon Prime, this thing ships free. If not, put yourself together a $35 order and you're good to go.
I bought this hoop a while back and am so impressed. It even comes with a mini-ball, not some foam thingy.
fyi- the ball will arrive deflated and does not come with a pump.
As evidenced by the pics below, I am being very honest when I say that I love this hoop.
I'm telling you, this thing is awesome.
Get yours here.