I gave all digital a try on my PS Vita.
As a result I have mixed feelings about it. It's very convenient, but it's also very apparent that you don't actually own anything, especially when you realize you don't like a game very much and you can't resell it.
Basically it's a matter of price. Between my iOS/Android experience and my Vita experience, I have come to the conclusion that I will NEVER again pay full price for a digital game. Most of the time, if not all the time, you will find physical copies of games for much less than digital (on PSN/XBL). That should not be the case. Digital means you own NOTHING, and have zero ability or rights to resell the game. You also get nothing tangible -- no box, no art, no manual etc. There is no shipping, distribution etc. Digital games should always be priced much lower than physical.
Look at Steam for example. I don't use it, but I'm constantly reading about amazing sales and crazy low prices on Steam. That's how it should be. I'm not expecting Sony or M$ to be like iOS with its $0.99 games, but I'm not going to pay anywhere near full MSRP for digital console games.
If I had to give a price range that would lure me into going digital on next gen consoles, it would be between $5 - $20 for full game downloads. $20 would be the absolute MAXIMUM where I would feel OK buying a game that I never actually get to own. More than that, and I'd rather get a physical copy that I can at least resell someday. I'm sorry if that offends the industry, but we consumers matter too.
Since that is probably NOT going to happen, I really have no immediate plans to even buy a next gen console. I'm very happy with my current gen systems as well as retro systems, and I'll simply milk them until next gen makes sense for me as a customer.