If there was a high demand wanted, and you wanted to gouge people of their hard earned money for a crappy product... Yeah you could try that. Or you could think first. Wii's are the most unwanted game system out. You can hack them, yes, but that doesn't make it worth owning. There are no good games for it. Wii U's aren't going to make that any better either. They'll sell out the first round, that is going to happen, all the "richies" will want one for their retarded offspring. During that dull but mildly profitable moment for Nintendo, they will all be sold out. Will you have a chance to make some money? Maybe, but is it worth attempting? It's a Wii product, not a new iPhone or anything relevant to society.
Not a good idea relying on a Nintendo Wii product, that is about to do terrible sales, to score a few extra bucks on. The thought is decent, money seems nice, but it's a Wii product...
If you do it and it works, more power to you man, you made money, but it doesn't seem like the right investment in the gaming industry.