Do you like the idea of spending $200+ USD for a half-broken product that you get to beta test for bugs for a corporation?

Put it this way, Garmin just put out firmware v5.0 for the Edge 1000. Now my Edge has a "feature" whereby every ride save is corrupt and needs edited with Fit File Repair Tool. The Edge1000 is over a year old...and it still has issues.

As to winter riding, it depends on what gloves you have. IIRC the 510 is a bit more fussy on that score.