IIRC, the hardware alone for each Vita costs like $160. If there's a price drop it probably won't go below $200. However, Sony has previously sold video game systems at profit losses (original PS3 saw a profit loss of $240 per unit sold, and the slim version lost $36 per unit sold), so it's not impossible that they'd do the same.
The 3DS is apparently being sold at a loss after its price drop, and yeah, Sony did it as well, so it's likely. I don't forsee it happening anytime soon though - if they did plan to sometime shortly it would have been announced at E3 (that doesn't mean it won't have dropped by the end of the year though, just don't expect it within the next couple of months)
I reaaaally really like Vita. My friend has one, and I'm always tempted to buy one. Once a price drop happens, I'll most likely buy a one. It has nice hardware, lots of games I like, and is region free. Seriously, fuck region-lock.
Region lock is my one issue with my 3DS.
I know my roommate is loving his Vita, but that's mostly because he never owned a PSP - so picking up a Vita gave him access to all the stuff he'd been missing on PSP. For me... I mean I more or less like the system but there's only two actual Vita games I've bought - the mandatory Katamari purchase, and BlazBlue CS Extend. ...Though to be fair, CS Extend has gotten more playtime from me than CT and the original CS release combined and I'm still constantly playing it, simply because portable fightan game.
Either way, outside of P-100 and Pikmin 3, there isn't much that has been
announced at E3 that has gotten me terribly excited - I'm more excited over the things that have been shown off and confirmed for coming out very soon that we've been waiting for (Fuck yeah we're finally getting a new Paper Mario) or various games already known about with new trailers (Persona 4 Arena, FF Theatrhythm, etc). Otherwise, I'm interested but not super excited for several things? (The two new NSMB games come to mind here)
But if they announce FE13 for NA at the 3DS conference tomorrow I will officially lose my shit.