Congrats! What made you decide on WOZ?
Couple of things.
First and foremost, the wife loved it when we played it. She loved the lights and the LCD screen. But one of the things she couldn't stop talking about was the two upper play fields. She REALLY enjoyed those, even if you aren't up there a ton. She absolutely LOVES verticality in games, and WoZ has a ton of it. The crossover ramps, the upper playfields, the flying monkey ball capture.
Knowing that, I started looking at other games. GoT Premium was an option, mostly because of the upper playfield. However, I still have not had a chance to play it. I've watched a LOT of games on it, and it looks great. But I have read a bunch of mixed thoughts on the upper playfield not being nearly as cool as it looks. Most reviews say that GoT is fast and furious (Pro and Premium/LE). The reason we got rid of TRON was because my wife would not play it because it was SO hard. She couldn't get anything accomplished and had no idea what to shoot at. It was too hard and clearly designed for a players and not casuals (which is OK).
The next big factor for me was rules. She loved WH20 (again with the verticality of it all), but that game isn't super deep. It's also expensive, hard to find locally, and a bear of a game to shop and maintain. Back to GoT, one of the weird things I had read was that the depth isn't necessarily in the rules but in the scoring. I love games to be difficult on lots of levels. WoZ rewards people who know the rules in that it has one of the deepest rule sets out there (SOTR is up there with Valinor from LOTR and SDMEWM from TSPP). But there's SO much bling and decoration that people just shooting at random shit can have a great time with it. So it caters to me in that I will likely never make it to SOTR, but my wife can shoot up the middle to get to either upper playfield and enjoy it. And of course, her baseline enjoyment will make her more prone to being interested in learning how to reach various modes.
So layout and rules were probably my biggest factor. The theme was tough for me to decide on. I could have ordered a Hobbit instead, which is actually more interesting thematically, but that game just doesn't look fun to me. WoZ isn't a theme I normally would care about, but the game is just SO much fun; it's easy to look past that aspect when the game plays so great. It's super family friendly, too (which the wife likes).
Next step is figuring out how to get the game upstairs. I want to put it in our loft because we don't have anything up there now, but I'm REALLY worried about getting a super heavy pinball machine up a steep set of stairs.