Stagnation in the MP3 player market

I sadly looked at my outdated 512MB Silver Line MP3 player and decided it was time to find a worthy replacement for it. The principle of selecting different glands is simple and well-known - first we decide what, in fact, I would like to have, then we search on the Internet.


So. What I need?

First , the device is based on flash memory. She has recently fallen in price greatly. And you will not have to be afraid of dropping a precious device with a collection of your favorite songs from a height of 20 cm and damaging your hard drive.
Secondly , there is more memory - 8G on board and it is not bad that if you wish, you can plug in an SDHC card for another 8G. I met on the Internet descriptions of players with the ability to connect to them a variety of flash cards.
In the third , that the device would be powered from the usual AA batteries. Packing 12-16 of these batteries here in Israel costs 7-8 dollars. I once in the store offered a player that runs on one AA battery for about 50 hours. This means that the 8-dollar packaging of batteries is more than enough for a YEAR. In addition, the batteries have the unpleasant feature of deteriorating a year or two after the purchase, or if they simply do not recharge for a long time. I heard somewhere that replacing a damaged iPod iPod battery costs about $ 100.
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We are looking on the Internet.
We are looking for a long time on Amazon, just in Google, on various Israeli sites.

Search result: nothing suitable.
Can't the MP3 player manufacturers repeat my uncomplicated chain of reasoning and release something practical?

So I say: Stagnation in the market of MP3 players ...