So, out of curiosity I typed the number of pages that I've read since I first purchased a Kindle into Wolfram Alpha. I'm not the fastest reader, nor do I have a huge amount of time to read, but I'm averaging near 20 pages per day over the last ~4 yrs.
Input Interpretation:
28,481 generic pages (in English)
Conversion:
8.687×10^7 characters (86.87 MB (megabytes))
(assuming 5.1 characters per word and 1 space between each word)
14.24 million words
1.3 million lines
~100 MB in four years... so I'll finish the 2 GB that my PW1 has in ~76 years at my current rate. I just hope I live that long, but I doubt it.