I find wifi extremely useful for file transfer purposes. I send all my books via email/wifi except for the few that are too large to email.
Being aware that lithium polymer batteries have a finite number of charge cycles before battery life becomes affected, I much prefer to use wifi vs hooking up to the computer via USB and taking up a charge cycle, no matter how brief, just to sideload a book.
I have yet to shop for books with the K3 itself, but instead shop on my PC and either d/l from Amazon directly to the K3 or d/l to my PC and email via calibre if purchasing from other than Amazon.
So yeah, I consider lack of wifi to be a deal breaker.
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