As a new pin owner I have to deal with a couple of different factors. Space and budget. Right now I have six pins (keeping one for a friend) over at the house and am out of room.
I am looking to "upgrade" by parting with my BK machine in order to get a CFTBL, but the others in my collection are all older machines or "B" machines (ala TFTC). So I am slowly building my collection but can see selling a couple of my older machines for a newer machine.
Plus... I have to make room for Charlie's pinball machine when it comes out.