I just compared Xapo World with few other websites & sellers in this shop, i found out that video games in Xapo World is still slightly more expensive than sellers in this forum or website that i've found before
Maybe they should give cheaper price to attract customer
Could I ask you what websites you are using to compare pricing? I see G2A was mentioned as a suggestion. Any others?
I just got in mind this website :
https://key4co.in/It's not much known or much used however the prices are pretty good , and when there is sales on Steam ... price of CSGO could go to like 6.99$ which is the lowest you can find on the whole internet probably ...
EDIT : Just another suggestion , you could focus on known and big games like CS:GO , Battlefield series , GTA series , Fifa series etc ... these known and famous games as I said .