I've had Houdini in our lineup since October & it's a phenomenal machine. Very challenging w/ an incredibly deep rule-set makes Houdini perfect for home use. Looking forward to test driving Oktoberfest, as AP certainly has my attention. Oktoberfest is still in it's inception w/ the early code, but Houdini is almost complete w/ four or so updated codes. Houdini for the win, but Oktoberfest will be another great title in a year or so. Go w/ Houdini now, then Oktoberfest w/ code progression.