I have owned two Apple computers, a 2008 15" MBP and a 2010 Rev C (SSD) MBA, both of which came with backlit keyboards.
I could point out that I have worked in places with rather erratic access to electricity supplies and that having a BLK was a considerable plus. And yes, I can touch type, but I also like the backlit keyboard. Hugely. And much prefer to have it on a computer than not.
For what it is worth, I have noticed an astonishing amount of vitriol directed towards those who wish to see the BLK reinstated whenever this topic comes up in a thread. The vitriol is unnecessary, and, to my mind, is somewhat excessive. In any case, be prepared to disagree and accept that the opinions of others may differ with you.
And yes, this topic does appear fairly frequently. Quite clearly, it comes up often, because it matters to a significant number of people (myself included; this is one of the main reasons I have held off buying an 11" MBA).
Cheers