Tesla do no sell the Roadster any more. The car they are currently offering is the Model S, which starts at around $50k, and ratchets up to right around $100k with all the trimmings. Sure, there will be a lot of window-shoppers, but at those prices, they're within reach of many buyers, certainly enough to sell 35,000 cars per year.
Also, the Lotus based Roadster is/was very cool. I have no opinion on the new model, I havn't seen it. But vibe of the whole setup is [was] more 'Gagosian' than Apple store. The McClaren F1 was sold the same way, in London. The cool part, and the reason I walked in, was they had a work-bay w/Snap-On tools integrated into the space. You don't see that every day. That made it kind of cool. =D