Maybe because Pokemon X/Y is the first Pokemon game I played since Pokemon R/B/Y, but dang it I love this game. I was one of those Gen 1ers for years. - "Any Pokemon after Mew don't count".
And then the first ever 3D Pokemon was announced. A 3D Pokemon game! It's what I had been dreaming about since I was a child. Maybe not exactly like this but close enough. I had a 3DS already, so why not? It looked cool!

I've heard the complaints about this game from seasoned Pokemon fans and I get it. I know this game isn't perfect, but as someone who was coming back to the series for the first time in 15 years, I was enamored. I will forever be grateful to Pokemon X/Y for getting me back into Pokemon and for curing me of my Gen 1 disease.