Why Are HI-RES Downloads So Expensive?

I have been looking into a new (to me) DAC, capable of the newer high resolution formats (DSD, MQA and so on).  In so doing, I've perused the high res download sites and noted what is available.  My question to the group is, why are album/music download products so expensive?  There are no more manufacturing or distribution costs relating to CD's or LP's.  Licensing and remastering costs can't be higher than production costs of new music.  So why have prices for music items not come down as the market for them increases?  I haven't paid this much for music since the CD first came on the scene.  I know there mysteries in life far more important than the pricing of online music, but it does have me flummoxed.