There is a reason for the cooldown on other stuff like books or shards, just to pervent that to many of the valuable items become free. Plarium has to earn some money with the game, otherwise they will pull the plug.

But I totally agree with you, the restriction doesn't make any sense on the Drexthar fragments.

I started by doing the same thing that you did, which was save up gold bars with the intention of buying all 100 fragments at once.  I think I had saved up enough gold bars to buy about 40 to 50 fragments until I read somewhere about the cooldown, which prompted me to start buying them each day.  In other words, I got lucky in learning about it before it was too late.

I think it is an issue that there isn't any sort of indication that the items in the bazaar have a cooldown.  The new clan shop at least has limits written, and timers for resets.  The bazaar has nothing.  Additionally, different items in the bazaar has different cooldowns.  For example, the ancient shard has a weekly cooldown, while the Drex fragments have a daily.  It would be great just to have an indication somewhere

At first I also do not understand why they did this then I finally realize why. 

This is their strategy to "trap" players into playing longer. This is their player retention strategy. 

First, like you said, Drex. You have to play 100 days to get him. Others are the doom tower champions. You have to play years to get them all. Then the new one in clan shop, Yannica. 

The devs probably have casino mentality where they want to "trap" players into playing. 

I understand that they want the other stuff in the Bazaar to have a cooldown(like ancient shard eg) but the Drex fragments? I dont see it, especially limited to one per day, whereas, i didnt want to write it before because my posting already had gotten that long, Yannica in the new shop is limited to 5(yes I know there is a weekly cd  on the whole shop, which to me makes the decisionmaking even more arbitrarily, but that's another story    ). But the biggest difference to me is that in the new clan shop it is written that you can only buy a limited number of items and that there is a weekly cooldown. So no surprises like with Drexthar.

So please Plarium remove or up the cd on DREXTHARS Fragments, so I don't have to watch other players using him and benefiting from him.

Thank you very 

I'm glad I read this topic. I've been saving up for Drexthar, too and now I'll be stuck with cooldowns. If I'd have known, I would've been buying them daily. I'm at 32k, so I'll be pissed off when hit 36k and have to wait.

Although the logic is questionable it is easy to know beforehand with a very small amount of research. You should not have waited all this time to test if it would work

The problem is that there is usually nothing worth purchasing before Drex, so no-one gets an understanding that the bazaar items are on a cooldown.  Personally I only learnt about it by sheer luck as I was browsing the forums here and saw it mentioned.  Based on some comments above, it looks like others are in the same boat.