As far as price, now. I should qualify that. Many dealers locally are running floor model clearances. Those can happen at other points in the year depending on the manufacturer and/or the flooring company (if one is used at all) terms.
Selection would be more scarce FOR THE FLOOR MODELS and availibility would be good on the floor models as they are 'in stock'
Some manufacturers have plant sut downs for varying lengths of time. These shut downs often happen sometime between December and February. You have to address that issue on a case by case basis.
Again regarding availibility, some manufacturers struggle with delivery times during busy times. That could be anytime between June and Septemer.
Hope this helps.
HTM