AFAIK battery life for the Pyra is expected to be around 10 hours, which is good for a handheld games console (for comparison, the new 3DS XL has about 3.5 to 7 hours battery life).
As for the price, it'd depend on what you meant by reasonable, but isn't going to be an impulse purchase for most. You may wish to consider the Pandora, which is the predecessor of the Pyra, you might get lucky with finding one for a reasonable price on eBay.
As for the price, it'd depend on what you meant by reasonable, but isn't going to be an impulse purchase for most. You may wish to consider the Pandora, which is the predecessor of the Pyra, you might get lucky with finding one for a reasonable price on eBay.