Sorry if this thread should be in "what should I buy", but seeing as it's a sony-only choice, I thought this would be a better place to ask
I'm current choosing between the PRS-300, 505 and 600. The 505 is still for sale in the UK. Even though it is older, I am leaning towards the 505, as I worry 300MB or so might fill up quickly with comics and the like (so no 300), and between the 505 and 600, I don't care about touchscreen and most people seem to think the 505 has a better screen.
Given most recent firmwares and the like, is there any disadvantages to the 505? Is it getting too long in the tooth, or is it still worth getting?