I started out buying games for less than $1K , concentrating on EM's with no particular theme . Then I saw Firepower on Ebay and had to have it for old times sake.
My latest purchase about 9 months ago was a Creature complete with Leds and lots of bling for 3K which is my most expensive pin purchase to date.
I currently have 8 pins but will be downsizing this year .
The only game in my collection that I played back in my arcade days is Firepower.
I am thinking of adding another DMD once I move some games on as I only have room for 5 pins setup.
I enjoy the resto side as much as playing them and like most collectors have a number of projects to complete.
I am thinking of having a pin from each decade starting with the 60's (in fact I do right now )