Still shouldn't use emulators. The art doesn't come through the same. Especially when it was crafted around the known limitations at the time.
It comes out better and unmuddled, and you can see the beautiful dithering patterns the designers created, and it comes out exactly the same on all displays -assuming no filters other than integer scaling-.
For every fake transparency effect the old developers tried to coax the CRTs into doing, the rest of the pixels look blurry for no good reason. Besides, for the whole "the artists crafted the graphics around the limitations at the time" lie to work, you can only speak of
some arcades where the artist knew the exact model of the monitor to be used; everyone else would be playing in vastly different tvs from each other, which may have had scanlines of different visibility, and more or less precise or dirty connections to the console, color bleeding, pixel size, etc. So in fact the artists didn't really know what their art would look like and hoped for the best, that best being, that oh god please make the scourge of scanlines disappear from this planet.
And that time came, and when we booted old games in emulators running on scanline-less monitors, it was like a veil was lifted from our eyes, and we could see what the artists had really painted, not what we could glimpse between the venetian blinds of old CRT tech.
