Well, I ended up buying a Garmin 200 last night. REI was really cool about taking the Sigma back after 1.5 years (without receipt), since I was purchasing a nicer computer. Wasn't sure if they would since my father in law bought it for me a while back.

While this one doesn't have cadence/heart rate - I never used that stuff anyway.

It supposedly didn't have max speed and elevation (it doesn't on the display), but when you upload your trips into Garmin connect, you get max speed and elevation, plus a really nice map of your trip. So, it really has more data than the Sigma (I think), and my out of pocket was $55 to upgrade.

The Garmin 500/510 looks way nicer, but it has much more (display wise) that I'll never use - plus I get most of it back when I upload the trips through the connect app.

Anyhow, the photo's of the 200 online look pretty bad, but the display is actually really sweet on the bike, and no more wireless/cable crap to deal with. We'll see how GPS holds up long term.