The $35 dollar price point was a lie, much like the price of nearly any small/"portable" piece of hardware.
I thought they were pretty clear about what the $35 gives you.
You pretty much have to buy a case if you want this thing to last, and that's at the very least $10.
Depends on how you treat it. If you don't abuse it you really don't need a case.
Then there's the micro USB power supply which requires 5v at about 500mah. I dunno what makes anyone think that a charger like that would be laying around. I have a micro USB phone charger, but it maxes at 250mah. So that was another $10.
Really? I can power it through my micro USB phone cable just fine... Besides, in USB 2.0 a unit can draw 500 mA of power just fine, at least as specified by USB 2.0 (and assuming Wikipedia isn't lying). If you just use a standard USB 2.0 connection you're fine, and I'd say most people have such a connection readily available.
Then there's the SD card, which ranges between 10 and 30 dollars. We'll call it $15 to be fair.
I've got spare SD cards laying around. Sure, you may not, but many people do, and if you don't you can get a dirt cheap 4GB one for under $10.
Altogether that's around $70 for this "computer" that's completely painful to use from the start.
I'm not sure how to say this, but if you're expecting something fancy for $70, it's not gonna happen.
I think people get their hopes up too high for the Pi. It wasn't ever meant to be a "here's a pretty tutorial on how to get into Linux and computer stuff;" it's more of a "here's a cheap little thing you can tinker the heck out of." Additionally, as has been mentioned, a lot of the beginners that are targeted are beginners in a classroom, with an instructor to guide them. I understand it may not have been what you expected (and maybe it was marketed to you in a less-than-ideal way), which is unfortunate.
I don't know what doubts I'd have about the Pi. What exactly are you doubting? Frustrations I can understand, but I'm not sure about doubts.