I disagree our kid, when I was looking the prices in the summer where exactly the same as they were in the winter, which did surprise me at the time because as you say you'd think there would be a price difference as summere desperation takes hold, but in my experience it wasn't the case and a 4k cab in the summer was still a 4k cab in the winter, unless as I said the seller was desperate to get a quick sale.
My cab might be up for sale and there are a couple of people interested, but I wont sell it for anymore or less than I would have done two months ago.