There are definitely some weird psychological issues around pricing. For example, there are experiments where you put an additional option on a list that nobody ever takes, but the mere addition of the option causes people to choose differently between the other existing options, compared to when that extra option wasn't there.
Also for ranges of things, they have a really expensive one that they actually expect nobody to get, but because it makes the mid-range option look better. Generally, people like there being a choice, but the vast majority of people want a mid-range one, not cheap and nasty, not needlessly expensive. However, removing the cheap/nasty and overly expensive options change consumer behavior, even if the people making the decision never actually pick those.
EDIT: to give you an idea how this works, say you have "cheap option 1" that's $20, and "expensive option 2" that costs $100, and you get a voucher for a free cup of coffee. Now, a certain % of people will pick option 1, and a certain % of people will pick option 2. However, if you add "option 3" that's identical to option 2, but you don't get a free coffee, everyone agrees that option 3 is a shit option: it's just option 2 minus the coffee. So people pick option 2 instead of option 3. The weird part is that more people also start picking option 2 instead of option 1, even though nothing actually changed between those two options, and nobody ever picks the "extra" option 3. So, by adding superfluous options, you can actually steer people to choose what you want them to choose: add slightly inferior versions of the choice that you're trying to steer them towards, so that the desired option looks more appealing. In other words, to make a certain design more appealing, add some butt-ugly optional designs to pick from, which cost the same. If you have too many good choices, people will get choice-paralysis and not be able to decide. So you only want a couple of decent ones and some godawful ones you hope nobody picks.
This is good knowledge for game designers actually: Say you have a regular sword, and that's 20 gold, and you have a +5 sword, and that's 100 gold, and you want more people to buy the +5 sword. Well, add a +4 sword for 95 gold. Now, anyone would be a fool to buy the +4 sword, since the +5 sword is clearly better value for money. But ... now people will see the extra +1 of the +5 sword as a "bargain" so they'll be more inclined to shell out for the better sword. Even if nobody ever buys the +4 sword. Strange but true, and verified in experiments.