Although the Japanese PSN Store has discounts for digital download versions of Vita games over their retail equivalents, nothing has been confirmed for the US and UK.
However, it looks like, in the US at least, the same may well apply. Retailer giant Best Buy appears to be gearing up for selling pre-paid cards for the games at around $5 lower than the RRP of the physical versions, which gives us some insight.
There’s some prices listed at the link below, including a couple we previously had no idea about price – Stardust for $10, and Escape Plan for $15.
Whichever, that looks like around a 10% discount. Now all we need is confirmation that SCEE will do the same for Europe.