From my memory....closeouts are not a good indicator of what the game pricing model was overall as someone still purchased the game at the true wholesale value. But...I recall...

early 90s - $2495 wholesale ($3100 in todays dollars)
later 90s - $2995 wholesale ($3500 in todays dollars)
pb2k 90s - $3295 wholesale ($3650 in todays dollars)

In most cases add in from $500-$1000 markup at the distributor level. Most disturbs were regulated and kept pricing on par unless you bought in quantity. So a pro model today at $3800 ($4200 msrp) is really not out of line. But do you get the same value per dollar?

Jpop