Funny, I'm a Wii owner who bought Move to try it out and I find the Move easier to use than the Wiimote. It's more curved and sits in the hand better. The glowing orb in reality is really quite soothing and it doesn't overtly seem to have more buttons, etc.
The two are so similar that I doubt anyone's going to find Wiimote = easy and Move = difficult.
The one higher learning curve there might be is in the games themselves. Table tennis on Move feels far better to me than Wii Sports, but I like table tennis anyway and found Wii Sports way too simple. Clearly others might prefer the ease of Wii Sports. But again, my youngest kid picked it up in ten minutes of play, so I really think the whole complexity issue is being overstated.
It's early days for Move, but I doubt any perceptions of complexity are the issue. It'll be down to the games, the market awareness and the cost (PS3 & Move being more expensive than Wii obviously).
Try to be reasonable... its easier than you think...
