I went digital a few months ago and can only say how much I like it. It is great to read comics on a tablet, fast download, no storage issues, great for fast consumption.
That said, I also buy printed comics, mostly European stuff, American superheros can be easily enjoyed on a tablet, but more refined artwork needs print. Also stuff I really enjoy, like Invincible, I buy digitally first and then the trades. Can't wait that long, same goes for Batman.