I tried the 2d on Altspace today, went on the "information walk". Interestingly I met someone else there, and we talked a bit (mostly "Can you hear me?"). I'm looking forward to the test-meeting this evening to see how interacting with a group of people will be.
Though one reason for my not buying a VR headset is that I already have a "I treat myself" purchase planned for about 300 Euros for January. And my "fund for unnecessary expenditures" is limited :)