Kob...snowkiting is awesome and usually easier than the water. USUALLY.
1) If you suck at skiing or snowboarding or both, snowkiting might actually be harder. I've skied all my life and skiers and snowboarders are horrendous for overstating their abilities. If you can CARVE turns really well on moderate to steep runs, then you are ahead of most. If you cannot carve (meaning, hold a hard edge), then the pull of the kite will be harder to resist.
2) If you are a better skier, use skis. If you are a better snowboarder, use a snowboard. Seem's a no brainer, but I get riders who are better skiers and try snowboards at first and get pummeled since they can't hold an edge. It's also easer over all to learn on skis at first due to the ability to move around easier while standing.
3) Conditions change by the hour, day and week, etc. We rode and trained new riders yesterday in fresh, soft and fast snow in the morning and by afternoon it was soft, slow slush. We'll get anywhere from soft snow, to rock hard drifted snow to ice. If you live in the mountains, then it's not as big of a deal, but understanding and knowing the conditions will help determine kite sizes, etc.
4) Only kite at a resort if there are wide open areas. The more open the better the wind. Just like water, larger bodies of water will have less gusty winds for the most part.
5) Wear a helmet and any other protection if the surface is hard or hard underneath.
I hope this helps and have fun.