AMD's prices as a comparison, prices went down at Stern's end and Pro and LE prices went up at AMD site ........... 

IRON MAIDEN PINBALL - STERN ​3 MODELS AVAILABLE
IRON MAIDEN PRO - $8450.00 (due end May)
IRON MAIDEN PREMIUM - $10,650.00 (due end July)
IRON MAIDEN LIMITED EDITION - $12,950.00 (due end June)

GUARDIANS OF THE GALAXY PINBALL ​3 MODELS AVAILABLE
GUARDIANS OF THE GALAXY PRO PINBALL - $8350.00
GUARDIANS OF THE GALAXY PREMIUM PINBALL  - $10,800.00
GUARDIANS OF THE GALAXY LIMITED EDITION - $12,350.00