I think there will be ALOT of great 1990's DMD machines for sale in 2012/2013 at better prices than ever before (because of high numbers brought in).
Its a GOOD thing actually for collectors, because the more pins into Australia, the more competition and numbers for resale, which means the "hey day" of high prices is over and gone.
Prices did steadily rise for a few years (apx 3 or 4) in a row, but prices now have steadily kept declining. Collectors can be fussy. I hope everyone on here is able to secure an extra 3 or 4 machines over the next few years at good prices if thats what you want. More machines can mean more fun and more new people enjoying Pinball !