Why exactly was sooo popular pokemon?

Remember, in 1999, when he was only 7 or something, and was the greatest pokemon ever? I mean it was a really fun game, but also a very popular television program, and very popular collectible card game, and shirts, and figures action, and stationery and burgerking / Lunchables toys, what made it so popular? I do not recall any other show / universal game winning so many followers. Although all the girls at my school liked it. Anyone have any suggestions as to why?

its mainly because children see something good in the front of the box to ask their parents and they buy it and find that its really fun and tell your friends about it and trade and talk about it and other things, I can explain overload with merchandise from your use his popularity to enforce

Korean Trade Show 2008 – Airrobot RINGBO