What do you mean by 'tech savvy'? I mean, it looks to me like I (and most of my *NIX-using friends) wouldn't meet your definition, which is fine, you just need to know what you are trying to target.
It sounds to me like you are selecting for people with upper-class backgrounds that spend too much time on techcrunch; e.g. you want a elite school plus apple products and obscure startups. (I am a little amused that you put EMC and FusionIO on the same list as Etsy. Perhaps you are trying to separate the corp IT out?)
I mean, most of the people that pass your test that I know? They are businesspeople. Some of them, sure, I'd call technically savvy. but not most of them.
Really, if you are doing a means test, put an income range or net worth range or something in there.
I mean, first you have to decide what opinions you care about; Me? If I was asking people's opinions of various VC firms? I'd care most about the opinions of people that have actually done a funded startup. I would define funded in terms of dollars of someone else's money; say something like "have you been a founder (owned more than 10%) of a startup that obtained at least ten thousand dollars of investment money, not counting money you yourself put in?" something like that. (I think owning more than 10% is a more useful definition of founder than "there at inception" for this sort of thing, but I could be wrong.)
Of course, you could be trying to get a broader sampling of what people think of various VC companies in general, in which case, you can broaden your customer base.
But asking if you own an apple phone sounds a little bit to me like asking if your bicycle has a flywheel.
On the other hand, thinking it through, if you really are trying to get a broad "what do people that read techcrunch think of various VC firms?" kind of thing going, then your list of obscure startups is a good idea.