Hold up now, I never said anything about LAZY. In fact, I said something rather negative about people who think it's lazy. I just said alternate tunings weren't a MUST. Hell, at least part of my reason for not using them is that I'm lazy. Plus, many of my favorite guitar players use them all the time. Joni Mitchell, of course, but Pat Metheny used to use them a lot, and Leo Kottke also used to use them a lot. Though, in the case of Metheny and Leo, they have both moved away from them in the last 20 years or so. Alternate tunings are cool, just not a MUST.
Light
"Cowards can never be moral."
M.K. Gandhi
Haha, sorry Light - I didn't make that as clear as I could have, but the "lazy" bit was purely me.
In context, I should expand a bit - I guess what I was trying to say is if you "need" open tunings, and then just use them to play the basic, fundamental chord forms that come easily, and not push them any further, then I think that's absolutely being lazy. It's a matter of using a tuning to do something that would be just as possible with a little more thought or practice in standard...
But, at the same time, there are guys out there (off the top of my head, Leo Kottke is a spectacular example, as would be Michael Hedges) who play in a wide number of tunings, but do some pretty spectacular things in those tunings. I don't think anyone would call them "lazy."
I guess what I was trying to say, and evidently failed to

p) was that to me, the number or nature of the tuning(s) you play in has very little to do with whether or not you're a lazy player. A guy playing power chords and stock canned licks based on the pentatonic scale in standard is probably going to be called "lazy" not because he's playing in standard tuning, but because he's doing very rudimentary things in the tuning he's chosen. THAT was what I was trying to say...
EDIT - ok, just realized you'd mentioned Kottke too. That's what happens when you start replying, a colleague swings by to see if you want to go out to lunch, and you finish an hour later when you get back.

Anyway, he's a monster, isn't he? One of the funniest performers I've ever seen, to boot.