If the PSvita is sonys last handheld, how long do you think will it survive?

[Darwinianevolution]

The Vita could have a lifespam similar to the Gameboy. I'm sure the console will be cheaper to manufacture in two or three years, and it could be sold at a 99€ in a couple of years. The Vita is a very poweful handheld, it could last another generation.