I started my career as a graphic designer, and I studied typography from an early age (my parents are both retired graphic designers and worked in the pre-digit

I started my career as a graphic designer, and I studied typography from an early age (my parents are both retired graphic designers and worked in the pre-digital era when designers really had to know their stuff). With the exception of a few well known typefaces (roboto, open sans, probably less than five in all) those free fonts suck. The kerning is terrible, there are usually no variants, they don't anti-alias well at different sizes, the international support is non-existent, etc. There is an absolutely insane amount of detail work that goes into designing a font and only the most OCD designers can pull it off, and only with an enormous amount of effort. If you spend 6 months to a year developing a font, you should be paid for it. Since I do notice these things I don't mind paying $100 for a font that ticks all of the above boxes. I stare at my IDE all day, and I wouldn't use a shitty color scheme, so I wouldn't use a shitty font on top of it.