Because it's a home router and I think nearby hackers (If there are any.. C'mon, a small, unheard of town in MS?) would have more fun with the WEP encrypted ones.
Whenever I do get a new router, assuming all of my devices are compatible, I'll go to WPA2.
And yes, it's TKIP. My old 802.11b router won't do any other WPA encryption methods.
I know where Gautier is. I'm currently living there, though I am not a hacker. I am pretty sure theres got to be a few -- I get 29 MPG in my Toyota Highlander Hybrid!