@Christopher902 Just to be clear, the key word was "always". Some hosts may indeed charge the base price they show at certain times and days of the year, or when business is slow and they want to increase their bookings, and the correct price will appear when you enter the dates, so they aren't doing anything deceptive.
Personally, I charge the same every day of the year, only host one guest at a time (therefore no extra guest charge) and figure cleaning time into my nightly rate, so there aren't any pricing surprises on my listing- I don't have a dog in this fight myself, but I know that there is only so much that hosts who do have fluctuating prices can do with the way their pricing is shown.
By the way, if you go to book an airline flight, you'll be shown a price that is the lowest price for that day, unless you filter for first class or something. When you actually go to look at that flight, you might find that there are many flights between those destinations that day, and the one you were shown was the cheapest one because it entails a layover along the way, or leaves at 2AM, and that the direct or more reasonable time flights are actually much more expensive. It's the same kind of thing. Hotels might advertise "Rooms from 39.99!" but the rooms at that price are small, have one window that faces a wall or a busy street and the better rooms are more expensive.