That could be useful for searching either console's store.
Well if you know what you're looking for anyway.
That's the problem with most of these "app" stores, if you don't know what you're looking for you'll never find it, sometimes not even then.
XBL and PSN was not as encumbered by this issue in the past since it only had a limited amount of full games and a filtered"arcade" section that. With the open door policy of the new generation I fear will get the mobile App Store bloat, but we'll see.
Ever since Linux did it's package managers, app stores have never been good for finding the good stuff.