Which one do you prefer, Digital vs. Retail games?

[Talal86]

So now that we've had the Ps Vita for months, which one do you guys prefer when it comes to handheld games?

so far, I've bought 3 physical games for the vita: Uncharted GA, Metal Gear HD Collection and Gravity Rush (and will soon buy Persona 4 Golden and Assassin's Creed 3: Liberation)
and downloaded: LittleBigPlanet, Sound Shapes, Escape Plan and PS Allstar Battle Royale (technically I bought the retail game for the ps3 and got the digital ps vita game for free)

I have to say that I'm kind of loving how Battle Royale is just siting there on my screen and I can play it whenever I want

I think if Sony released 128 GB memory cards.. I might go all the way digital