I like to have a digital collection - but once you already have a bit of physical media, it is worth to grow the collection both physical and digital.
It must be a great feeling to have all of these, to be able to touch them, to drop the needle and put the cover while listen to it. The symbiosis of the media and the player resulting in something that drives us - music - is something oddly special. When I bought a CD for ChinYunZi I test-played it in my parents CD rack. It is as weirdly magical to take the disk, the player turned on and press PLAY. Like flipping actual papers of a book.
I always had a 40-disk CD rack and I am glad I don't have it anymore and my appartment would not sustain shelves upon shelves for that but if you have the room I can only say I am a tad envious.