Quality is too subjective to have sales equate or collerate directly to it.
Personally; I think Pokémon is a brillantly, expertly-crafted JRPG series. I also think series like Tales of and Final Fantasy (in recent outtings)do poor jobs at entertaining me.
Likewise; a AAA title with a expansive budget can sell in the millions and a relatively smaller title with a budget of less than 500,000 USD can sell in the hundreds of thousands and yet I can hold both in similar regard.
If anything; resonance with the market should never be a indicator of a game's quality but rather an indication that at a baser level, the game has done its job well either it be to pander to teenage angst or portray a beautiful world and so on.
Pixel Art can be fun.







