I bought a set of dictionary and encyclopedia a few days ago and laid my hands on the latter on Saturday, the day we suffered an epic 14 hrs without electricity. An offline reference may seem like an anachronism in the 21 century prima facie, and for a few hours after the purchase I was trying hard to convince myself of having made the right decision.
It was vindicated when I flipped through the pages and rediscovered the vintage joy of reading a glossy reference. What an experience it was...beats the hell out of HTML pages whose chief claim-to-fame must be hyperlinks.
Flipping through pages remains sexy as ever.