For me, it depends. If a game is an impulse buy, or something I decided to get last minute after researching it, or checking for gameplay and whatnot, I'll buy it digital, just because it can download while I'm working, or doing literally anything else.
It also doesn't help that for a while now, I've seen people basically say the best way to make sure you've got a game ASAP on release day is getting it digitally. Way too many threads with brehs out here complaining about waiting on deliveries. Add to that that at this point you're down to mostly just Best Buy, Target, Wal-Mart, Amazon, and GameStop as far as places that have physical stock for sure, and I can easily see why some people would go.full digital. Options are drying up.
That's my real concern. Games going to route of the music industry (which, to be fair, is unlikely they'd go all the way down that path) wouldn't be a positive for the consumer.