Okay, I'm in love with collecting cards because of the art. I own quite a bit of Pokemon cards, and my favorite cards are the ones that look drop dead gorgeous, not my favorite Pokemons. Same goes for YGO cards. Amazing art, in my opinion would appeal to anybody, even those people who really don't like/don't gt the game.
For the game to be appealing to me, it has to be understandable. xD I don't play the PKMN TCG because I can't make out the rules. There are damage counters, energy cards, trainer cards, etc and I can't seem to make any sense of it, so I simply play without those complicated cards, which really makes the simple 50 hp damage to my opponent less exciting I guess. ^_^;
YGO, on the other hand, I could follow along, but I didn't get it, until I play YGO for the DS. I learned from playing the DS game that this card couldn't be used now, or you have to sacrifice these cards to get that. Now, I totally understand it, unless if it is YGO 5G's. xDDD
I really don't like to learn new complicated rules, but after I do get them, the game is fun, but if the art is amazing, I'm probably going to consider buying a few cards. This is the understanding of a 14 year old girl, by the way. ^_^;