If you want players you should just make the first 15 to 20 levels a shitton faster than they are. Yes, they are quite fast already, but they are not fun for someone who is not skilled in the game. People should be able to get into the game fast and be at least somewhat competetive. They'll be horrible at the combat anyway, but at least if they hit they won't just be guaranteed to glance.
Someone will answer with "lol, STF", but there's a big difference in playing a character that actually develops and STF. Besides, STF isn't exactly obvious the way it's named and placed etc.
Anecdotal evidence is terrible, but I have a friend who has played singleplayer and some Napoleonic Wars before. He tried cRPG - he even played a few hours - but he is quite bad at manually blocking, feinting etc and when you combine that with horrible stats (and gear before I gave some money) that make you quite useless even if you manage to hit someone it just wasn't fun.
EDIT: Someone's suggestion about limited time 1 per cdkey level 21 chars with extra money was pretty great. Hell, anyone playing their first gen should start like that imo.