>>1046328
To be honest although some of the more balanced maps have tons of videos (mostly because there are tons of available openers for the maps), the GL/Tournament map rotation is so varied that you can never truly have resources for every map at your disposal. A lot of games also have tons of small micro and macro errors that you can't just study comprehensively before a match.
>the other 40% is building walls and trading efficiently
Except for fog where mindgames and guess work are more important, since you have incomplete intel on your enemy. But Standard and High Funds are 100% a numbers' game once you get to a certain level.
>>1046418
Aside from the competitive scene, there's like thousands of games played daily. It's probably in that sweet spot of being both niche and popular enough to warrant donations to the servers.