I've been a member of NPDor for the better part of my nearly 10.5 years online.
If they've sold my info to anyone else, I'm blissfully unaware of it. Of course, I get the occasional Spam, which my Junk Filter is pretty good about catching, and there's no way to know how the Spammers acquired my addy.
In all that time, I have yet to win anything.
I always opt for the $5,000.00 cash prize, which pays out about every three months.
It usually takes no more than ten minutes to fill the survey out. I'm probably usually done in closer to five. But that might be because I don't buy a lot of stuff clothing, electronics, cell/cable service, music downloads, etc, which seems to come up quite often in the surveys.
There's been a few occasions where it took much longer, maybe twenty minutes or so, when even though I answered negatively to the early questions, the survey went on to some weird tangent, asking me several more questions that were totally unrelated to how the survey started out, or continued asking questions related to what I'd already basically said "no" to.
The longest one was about 1.5 years ago, when I was in the hospital and using a friend's laptop. I think it was one of those that I thought would be really quick because of how it started out, and didn't really pertain to my recent purchasing activity, because the time frame it covered, was my first few weeks in the hospital!
I don't remember much of the details of the survey, but it was like I'd basically give a negative response to each of the questions, and the survey would keep pushing for more detailed answers. I think it literally took me 1-1.5 hours to complete it, not only because I was typing from the hospital bed a bit awkwardly, but, I think the wireless mouse had died by then, and I was using the clumsy mouse thingy built into the keyboard.
Plus, I had hospital brain!
I know I didn't need to finish the survey, but I'm stubborn!
I also get a kick out of playing the little Sweepland games. They change them up from time to time, so not only do they have the current wheel one, they also have a Family Feud
"survey sez" type game, a race car game, and one a bit remniscent of Plinko
, amongst others.
Hope this helps! And if you continue to play have fun, and good luck!
(Just don't win the $5,000.00 before I do!