Honestly, I know it was kind of expensive to get all the characters, but this game was really good. The Toy Box mode blew my mind when I first played it, they genuinely give you enough tools to make an entire game yourself if you want to. The Playsets though were a mixed bag some good some bad, and the roster of characters was missing several classics. Overall really solid game.
I used to play Disney Infinity a lot with my sister which was a lot of fun for a few years, it was primarily fun just to play on free play mode and harass each other with all the fun items you can spawn in. The actual game part is not as fun and we never really played it. We only ended up beating the Incredibles world because we didn't have the motivation to play any others. Also, I thought it was annoying that you had to buy individual characters to play with them. But I still think it's a good game and was fun for a while until I got rid of all of our characters and sold the game on eBay. I wanted to get the other games but I never ended up doing it.