I wouldn't say it was quixotic. Think about it this way: If fortnite made at it's peak $5.5b, and 2/3rd of that was PC (I have no idea of the ratio, just guess

I wouldn't say it was quixotic. Think about it this way: If fortnite made at it's peak $5.5b, and 2/3rd of that was PC (I have no idea of the ratio, just guessing), Epic would have been paying $1b to Valve in just that one year (3.66* 0.30). You could spend a lot on developing a store to avoid paying $1b in fees! Plus, your chance to launch a store is when you have a big product. Valve launched Steam with Half Life 2. It didn't really work that well at first but everyone wanted to play HL2.