Huge hype then huge wait times have that effect. I know with Guild Wars 2, I was hyped beyond belief... two years ago. I then played the betas this spring/summer and thought "yeah, this is cool. I guess."
Extreme hype wears off quick, and needs to be capitalized upon immediately. I can already feel the same thing happening with the Microsoft Surface.
I do know that if I could have bought 10 RPis in March, I would have. Last week I paid for my preorder of one and feel thats probably enough.
I have exactly the same feeling. I wanted to order at least 2 RPi during the launch (one for me and one for my wife), but now, I didn't even care when Farnell and the other distributor contacted me that they can send it to me as soon as I pay.
BTW. I always thought that the published price is with taxes already and now I see that I have to pay 23% VAT on top of the $35 device (+ shipping, but that's obvious). So it's a real pain. Here in Europe prices shown are most of the time with taxes included (not counting the huge distributors selling only to companies)
I wonder how many others are like me, and how much more they might have sold had they waited to have a bit more stock at launch.
(I'm not taking anything away from the product or the team, just an observation/question on launch strategies.)