It's all too subjective. Each vote depends on each persons circumstances and needs. As an example who would choose a 17" monitor over a higher resolution 22" or 24" HD resolution monitor? My brother- that's what his computer desk/storage desk allows. Different people have different budgets, different uses. It's all so pointless, it's just a way for the site to suck people in to gain traffic- is there any other *real* reason for these 'surveys'?
People will always practice self-justification and defend their purchase decision even where there are other better options out there, it's human nature. They don't make mistakes, know best, and buy the 'right' parts. Anyone who buys anything else is clearly not getting the best thing.
If there really was only one best thing then price could drop as manufacturing costs would drop significantly by building one standard item. We'd lose innovation and choice, but hey- we'd all have the 'best'.
It boils down to these surveys being only useful for one thing- increasing web site traffic so advertising revenues increase. Which, oddly, helps those who enjoy participating in pointless surveys......