I own the PHB, DMG and MM physically. I've also downloaded the various free pdfs from the WotC site (Elemental Evil Player's Companion, various Unearthed Arcana, etc).
I find it convenient to be able to search through these pdfs via text matching and that I can carry them around all in my pocket. Not so with the PHB, DMG and MM; they live at home and must be searched through the good ol' fashioned way if ever I need to look something up.
Is there a (legal) way to aquire a digital copy of these core rulebooks (also Volo, SCAG, etc)?
Obviously I won't accept "scan 'em all in yourself" as an answer ('coz I'm a lazy millennial) but I will accept "no, there isn't" if there really isn't anything available to download (legally).
Also note that I am aware of the basic player/DM rules that are available but since it is cut down (understandably since it's free) I don't want that as an answer either.
Finally, there's this suspect looking site, (it's the first hit if you Google "lost mines of phandelver"); given that it appears to offer every D&D book ever for free, I'm guessing this is not legal? Assuming this is the case, I don't want that as an answer either.