I live in a city that is very seasonal.
We have a distinct low season Oct till end of March (except Christmas and New year). The prices for this season need to be low (but AirBNB tries to force the price to an un-naturally low level C$8 to stay is not economic). We need ways to encourage multi-day stays. Because of local celebrations New Years Eve is the most expensive day of the year.
There is a mid-season where weekends prices need to apply (for Friday and Saturday need to be 15% to 20% higher than Sun to Thur). This season is Apr to mid June and October.
There is a peak season, where prices must remain high.
CVariable prices don't respect seasonality. As today (if my caliendar is not altered) someone could book in July at winter prices - WRONG!!!