The Wii is not as active as everyone says it is. I know a lot of people that play Wii sitting down.
Like I said earlier if you are looking for active and fun, get a Kinect for Xbox. If you are unfamiliar
with Kinect click me! It really is as much fun as they show.
If you are going for least cost Wii is better. But if you are truly looking for a system that your kids can grow with get them an Xbox or PS3. PS3 has a motion based system out too but it uses controllers like the Wii.
Wii gets old quick sometimes due to its lack of controller based games. Wii controllers are also known for going through your TV due to not wearing the strap and/or the strap breaking.
I may not know a lot about cigars. But, trust me I know video games. I have owned every system since Nintendo and Sega and I have tried just about every type of game there is.
Wii= Cheapest system and a lot of fun.
PS3= Blue-ray, free online, WiFi
Xbox= Hands down the best "active gaming."
Don't forget in about 3 years there is going to be new systems on the market and your kids are going to want those too.
I am also not trying to bad mouth Wii. It is really is a great system.