Sony recently confirmed that the downloadable Vita games purchased via the PlayStation store would be cheaper than their retail counterparts. However, after a recent PlayStation 3 system update (4.10) added Vita games to the PSN, one game in particular remains at the same price as the retail version.
Perhaps the quality of the games will determine the amount of discount the downloadable Vita titles will get. Looking at the PlayStation store tonight, all other Vita games are indeed cheaper as recently confirmed by Sony, except for Uncharted: Golden Abyss. For those waiting to purchase Uncharted: Golden Abyss via the PSN due to its cheaper price, you may want to reconsider and go ahead and buy the retail game at your local retail store or online retailers.