Agree with all the others that playing a game first (and ideally play it multiple times 5-10+) is critical - unless you don't mind 'shifting' through games to find what you really like.
I started with mainly 3" flipper games since that is what I remember as a teen and have had some good ones (Jacks Open, Abra ca Dabra, etc.) but really found I liked playing the 2" games better.
I also hear you on wanting a specific theme/artwork. I love the pop-culture and aesthetic qualities of the games. Ideally you can find 'the one' that hits both look and play. For me it is my Sing Along. Good hunting!