I'm going to open this post with I completely understand everyone will not be happy with the choices we make. There are users that want every single item ever, there are users who don't want to work too hard to get a thing (think along the lines of just want to do a quick action and be rewarded immediately), users that want more expensive items, users that want more effort in things, etc.

Balance is the name of the game. From the start of seasonal items in the quest shop, back before they were added to their own tab and were still in the NPC's individual shops, they were the more expensive items people were asking for. The idea behind it is that seasonal items get added 4 times a year on the first day of that season. You have roughly three months to work towards those items. The "cheaper" items, generally those added once a month to go with the monthly theme, are just that... added once a month and are 5-6 items. There are times when we add a group of items that we feel fits an NPC well, such as the Pride items to Quentin.

Back to my point -- the seasonal items were always intended to be on the higher end because they were added less frequently. The "regular" themed items were added a bit more frequently and a bit cheaper (I try not to go past 30 QPs unless it's Saggi because he's a rich dude and wants all ur money).

This is a case of ranking what you want most and going for those items first and then working your way down. Since it's Survival time, think of it in terms of you pursuing the infections. Minus the current year at the start, people generally know what they are going to go for from past years. They make a list and work their way through what they want most to make sure they get it. That's the idea of the Seasonal Quest Shop items and other times we make a few very expensive things vs the other prices in a shop. People have a ridiculous amount of wizard tokens, crystals, etc. We have to add expensive things sometimes. I try to balance it by not making them the majority, though!