They need to
-Lower the memory card prices
-Focus on marketing (cause the marketing sucks)
-Focus on Bundles and special colored units
-Develop new IPs like Gravity Rush (certain games that appeal to different/all regions)
-Develop/release established franchises (first party-second party)
-Port over some PS2/PS3 games with enhancements such as additional features added to gameplay/storyline/etc
-Establish PS1/PS2 support asap.
-Expand the PSP to PSVita Library support
-Money hat (GASP!) some third party developers in some way (such as making a deal etc).
-Expand on Apps since the OS seems to work well with it (maybe)
I'm going to respond to each of your points:
- The memory cards are likely Sony's only way of turning a profit or even breaking even on the Vita right now. As much as we want them to drop the price, they likely can't afford to.
- Sony hasn't been good at marketing their products in nearly a decade.
- Bundles and special colored units will help, sure, but the price is still a HUGE obstacle.
- Gravity Rush is a pretty poor example, I think. Sony needs to develop new IPs, sure, but they need to develop ones that will appeal to more consumers. Honestly, and I know this may sound a bit absurd to some, but I think they need a new, child-friendly mascot platformer to go alongside Ratchet and Sly moving forward. Appealing to kids is far more important than appealing to adults in this case.
- They are releasing their established franchises on the system. The problem is, aside from Gran Turismo, none of their franchises are really system sellers. They sell well because they appeal to gamers who bought Sony systems for other franchises.
- Ports are NEVER the solution, especially after the first year of a system's lifespan.
- PS2 Classics support will never happen, just give up on that dream.
- Yes, I agree, more PSP games NEED to be added to the PS Store, specifically big titles like Crisis Core and Birth By Sleep. Sony doesn't seem interested in this, though, unfortunately.
- Sony's not really in any position to money hat for exclusives. Their system is flat-lining, they're likely spending tons of money on R&D for the PS4, and realistically, it would be a gamble on whether said exclusive(s) would save the Vita, so there may not even be any real return on the "investment". Heck, third parties might not even be interested, because 3DS is looking so much more stable for their releases moving forward.
- People have phones for apps. Vita is not a phone, so all the apps in the world won't help.