I keep hearing start at $200 and go up from there. The RWS's are nice for the money. I have the Crosman quest, decent for the price, lots of cheap parts, made in China. I also have a Beeman gs950 in 22, I really like that, it's a Spanish made gun like the Gamo's. For the price (I think it was around $180 w/scope) I am more than impressed. Much better quality than the Crosman. However, I'm wondering what the RWS's are like and the other german made springers.
Oh, on a side note, the 22 cal has way more wallop than the 17. The 22 is going about 700 and the 17 around 950. Gamo talks up their PBA ammo, it's just a light alloy pellet. All guns will shoot them about 20% faster. I personally haven't had good luck with them, they are not as accurate in my guns, and I've heard they are bad for the springers (creates lots of vibration). Most of the springer nuts on other sites really tout up the heavy pellets, like the Beeman Kodiak or Crow Magnum, they really smooth out the vibrations and create better accuracy.
I'd really like a 25 cal now, heard Gamo is going to offer one soon. Beeman used to have one, as did a couple other companies. Should be really cool on rabbits and other small varmits.