Are you really sure that you're making the time for the right books?? Maybe you just need to reevaluate your standards for 'reading matter' so that you enjoy the books you do make time for as much as possible. Poetry, perhaps? Drama? Philosophy? History?
I guess what I'm trying to say is that maybe you 'aren't reading much' because you haven't yet figured out what sort of books really engage your attention. If novels aren't your thing, spend more time seeking out other alternatives. There's a lot to choose from out there.
My reading habits have changed a lot in recent years. I used to consider 'reading' as one of my favorite activities, but now, even though I do enjoy really good books, I don't scour the bookstore for new things, search the internet for news of a beloved authors's upcoming titles, or otherwise make 'the pursuit of books' part of my life in quite the same way.
Why is that the case? I don't know. The sorts of books that used to hold my interest just don't grab me anymore, so I make time to read at bedtime, since it helps me unwind. Books last longer too, now that I work my way through them more slowly, so I spend less, which is good.
I'm a lot more particular about what I read, too, much preferring a book that really engages my attention. I've got an enormous collection of science fiction that I haven't touched in ages. I finally quit buying Star Trek novels, since I realized I'd been buying them, but not reading them the way I used to.
Lately, I've set myself the goal of 'reading all of Ngaio Marsh's mysteries, in order,' and I've pretty much stuck to it, with occasional stops for other irresistables. (Devoured the new HP title in two days, lol!)
I think it's as much a matter of finding the right books, as anything else. When I find a new, really interesting author, with loads of titles in print, my old insatiability for books/reading makes a brief comeback.
I've read a LOT of books in the last 30 years, so I demand more of my authors than I would have when I was younger.
I also read a bit more philosophy, and 'sacred' type texts than when I was young. Stuff like that takes more time to digest than a fluffy pulp novel.
I think I'm reading less, but enjoying it more, if that makes any sense.
A fruit is a vegetable with looks and money.
Plus, if you let fruit rot, it turns into wine,
something Brussels sprouts never do.
P. J. O'Rourke, humorist