Really? I trust a private repo I am paying for to be there in a few years. Perhaps I am still of the "buying a cd" generation but someone somewhere has to pay for a saas service. It's just more real this way.
True, a paid service is probably more likely to be around in a few years (in general), but does that matter for distributed source control?
I guess if you depend on non-git features, like issues, there's a chance that there's some lock-in. However, most of the ones I use have a migration strategy [0].
The beauty of DVCS is that it really doesn't matter if your "main" repository suddenly vanishes. As long as you've got it checked out locally, just push it somewhere else.
The main point is that I have to pay someone - otherwise hosting and indeed it seems every web service out there is running on the Greater Fool Theory.
