That was the original plan for the XB1, prior to it's release. Microsoft strolled into E3 that year, and said, "Digital download for almost all games, no discs. And the price point is going to be $499."
Then Sony completely took them out at the knees responded in their subsequent press conference by confirming optical media (discs) and a $399 price point. Guess who "won" E3 that year?
If people want digital downloads, I understand the allure. There's positives and negatives to both sides, just like drinking your beer out of a can or a bottle. At the end of the day, beer is still beer, and the games are the same.
Me? I like the fact that if I buy a game on a disc and it sucks (coughConanExilescough), I can take it back to Gamestop within 14 days and they'll credit me the full purchase price, no questions asked. That money isn't wasted then, and I can put it towards a game like RDR2 (which is exactly what I ended up doing, btw). If that had been a digital purchase at release, I'd have been out $50, and while I'm sure $50, $60, or $70 isn't a big deal to most people, that's multiple cases of beer or a bottle of scotch that I'm missing out on from a cost perspective.
No thanks. Unless companies move away from the current model of "release an unfinished game and fix it over the course of a year or two"--I'm looking at YOU, Ubisoft--I'm going to be wary of any sort of digital purchase for a new game.
Now, if it's a game that's been out awhile and I've played it and I know I'll like it (ESO), that's a little different. While I have all the faith in the world in Rockstar and the RDR franchise, I've been snakebit too many times with purchases to place blind faith in a particular title or property, right, @Truth & @Cokeyskunk?