Do you want to anonymize your internet requests? Then you can build a Onion Pi. Onion is just a router with tor support based on Raspbery Pi and a USB WIFI Adapter. If you don't have time to build your own, the guys from adafruit, have some of this gadgets on stock, for $89.95 ... pretty expensive for a Raspbery PI and a USB WIFI adapter. Anyway, this is the price, if you don't have time or knowledge to build one from scratch.