My first buy was a pinball machine. But since then I have been jumping at deals on arcades. I agree they don't hold up as entertaining as a pinball machine would, but the prices are so much lower.
I also do not have the disposal income at this time to buy many pins so that doesn't help. Prices are much more reasonable for arcades.
I am contemplating selling a few arcades to purchase another pin or Golden Tee 2019. I love pinball but with a group of friends GT is hard to beat. New Years Eve my friends pinball machine was often not being played but his Golden Tee Complete was always in use. It pains me to say that but it's true.