What I have heard is that Nintendo made DS and Wii games are the ones that are worth Coins, with DS games racking up 30 Coins and Wii games 50. “Bigger” Wii games, such as the Wii Fit Bundle, are supposedly worth more, like 80 Coins. While they are not currently worth anything, there is word that Virtual Console & Wii Ware games may eventually be worth Coins too, although a modest amount, like 10.
Again, going on only what I’ve been told, 300 Coins nets you “Gold Member” status while 600 Coins gets you “Platinum Member” status. Rewards apparently range in price from 300-800 Coins.
Also, apparently Coins are earned by not just registering games, but registering them and then completing surveys on the games you registered. Not all Nintendo published games have surveys up (games like Children of Mana, Trace Memory, and Polarium) and therefore are not worth any Coins, even if you have them registered…not yet anyway.
I look forward to learning more about the program, and once I’m able to access my membership I’ll be sure to post more, including information about what rewards are available (right now I’m hearing Mario & Animal Crossing themed playing cards, game cases, DS cases, even the Famicom designed Nintendo DS). In the meantime, check out Club Nintendo for yourself!