Well, for now VSD1/S is the only choice. Still no info whether some of the retailers like LMUE will have any VSD1 Limited Edition units for sale after 15th this month but I doubt it given how it sold out in only 2 days and people were allowed to pre-order only one unit. Also there's a high possibility the VSD7 will be released in the coming months. As far as VSD3 and VSD5 - it was mentioned few times they might be available earlier than January 1st but it's not clear if vsonic means available at the market or just available for pre-order.
So maybe I have to make my move sometime soon