Quoted from mbeardsley:
I really was just curious about how hard it is to do a playfield swap on a JJP machine.
You do bring up an interesting point though...if the pooling and such does not affect gameplay, and no one is going to do the swap, why was there so many complaints about needing a new playfield? People need something to fill their closets with or something?
Makes it easier to sell your machine later and get a better sale price (makes new buyer feel better- even though they may do the same !!! Storing it).
Other reason ends up being a money grab. Sell your current machine at some point and next buyer does not care about minor playfield issues as long as it plays. Think of this as a payment for pain and suffering.