retail most likely will be fixed around this price seeing the trend of Medicom's pricing, it would be unusual that it will get a 60-70% off unless it's really a niche market item like Bakuman. 50% would probably be the lowest it will go.
but don't forget the 2nd hand market, more people will buy up Guts at 60% retail & many will end up selling it off due to impulse purchase. so if you don't mind BIB items that has never been displayed wait for another month or so. current 2nd hand Guts is around 40% off so it will be cheaper for these batch.
anyway now is a good buy if you have the budget. still comes with the 1st release extra head.
i see Medicom Link going the same direction.