>>5892135More or less true: you can cut on the paper in many ways and still get decent quality thing; one or two (travel) brush 3/5 pans, a small portable palette & a little bottle of water and you're all set to paint everywhere/anywhere;travel brush will last decades if you handle them properly, good quality paint will also last.
Alcohol markers can get expensive ($50 to $60 for a set of 12 Copic); you can't effortlessly get a full value range out of a single marker; blending them is tricky; you have little to no room for mistakes (you can tweak watercolor much more than it is usually believed).
Also,
https://www.vanillaarts.com/blog/prevent-copic-fade,
https://www.kimcrick.com/pages/are-copic-markers-lightfast: too lazy to dig further, but getting pigment info (thus an idea lightfastness doesn't seem immediate)
My experience with marker is more limited, so I may be biased: I wouldn't mind changing my views, but so far, all considered, watercolor seems to be winning, at least if you want to sell things and paint everywhere.
