As I just told one person on here, it varies from person to person. I think the reason why it took me so long is that majority of my hubs that i have on here were transferred from yahoo, as i used to write film reviews a lot as a kid. Plus, when i came onto this site, it was like years since i actually written anything, so i was still fairly new at writing critical reviews. Plus, as one person said once, that film reviews are hard to establish since most films only get clicks during their initial release in theaters or on dvd, so they don't last too long. that's why i've been trying to develop my writing style to incorporate other topics besides movies as well. factor in being busy with school and work, it doesn't exactly help when your trying to make time to write hubs AND figure out how to make money on hubpages.
However, there have been other users like edweirdo and cagsil, who for some reason got they're payouts way less than half a year being on this site. Therefore, it varies from person to person that's all.