Just as a heads up, back in the day, I found cashing out high 4 low 5 figures from Prima to be a gigantic hassle. If you want to have money at the tips of your fingers, don't keep it all there, keep a good portion in Neteller. This could have been changed and now perhaps its relatively easy, but I'm not sure.

Some sites, however (for example Party), cash out at the speed of light and there's no real difference to Neteller unless you are worried about your money's security.