Hi! Summer Break costume has historically been a little more expensive and rare compared to the Anbu costume. Summer Break costume also offers the highly more valued 300 Life and 100 Initiative stats, compared to the Anbu costume's 300 attack and 300 ninjutsu stats.

Pictures below:

~Jib

Yes, the pack is called Optional Clothing Pack that contains Ceremonial Kimono, Summer Youth Sai and Wild West Clothing .. As for now, the current location of that clothing is good and much better than having them in regular shop .. We can buy complete set of that clothing with very low price (at 30% discount = 2600cps, 20% = 3000cps, 10% = 3400cps) .. Compared to the Wild West that is currently on regular shop, it cost 3500cps for 50 pcs of fragments ..

Considering the availability of the said clothings, if the item is in rotation and only obtainable during a particular time or event, then the price is going to be friendly, on the other hand, when the item is available anytime any day, then expect that item to be priced with regular price .. Again, just like the Wild West Cloth ..

Another factor for the pricing of the Clothings, it is priced based on its Stats and not with their looks or maybe a little from the looks .. Explaining it using real-life scenario, Clothings in game is not like a fashion trend in real-life that prices drops when new trend comes, Clothings in game is like a precious metal, like Gold, even the jewelry design is centuries old design, the value of the material from it is made from is the and will be the basis for its pricing (remove the antiquity value for my reasoning of course) ..

I just have to say, those are some quick replies =p The community is amazing xD But yes, there are packs that offer the Ceremonial Kimono and Summer Youth Sai in the Treasure of Sage. However, I can definitely forward your feedback regarding the costume in other events.

~Jib

Jib Edit: Proofreading like a pro =]