I do read a lot or so I'm discovering after having bought a smartphone. Both the web and ebooks, though I'm now favoring the latter for much less power consumption.
I wouldn't buy an e-reader device alone, like the kindle. Besides being excessively large and clumsy, I wanted all the convenience of an all-in-one mobile: 3G, wifi, telephony, camera (720p videos), applications, games, music playing etc. I wish batteries would last as long as the kindle, but that's too much wishful thinking...