I know your feeling I just upgraded to a new case without optical drives. I was frustrated because I have a blue-ray drive that now is useless and I just bought a new motherboard that needs an optical drive for the included ROG Supreme FX HI-FI Sound card. They are doing it because aesthetics and because most users and gamers download their products(like games,music,movies) online instead of buying and using hard copies. For example the case I bought is a full tempered glass, of course it looks amazing but now I'm stuck with a case that I like a lot and has no optical drives for my HI-FI Sound Card or my Blue-Ray player.
Here is the link for the case I bought:https://www.newegg.com/Product/Product.aspx?Item=9SIACUC57H2444&cm_re=tempered_glass-_-9SIACUC57H2444-_-Product
And this one is the link for my new Asus motherboard:https://www.newegg.com/Product/Product.aspx?Item=N82E16813132698&ignorebbr=1