Oh what the he!!, I haven't argued chain lube all week . . .
Here is my personal choice
I use it about once a week (200 miles or so) or after really sloppy rides. I've got 4,000 miles on my current chain and its nowhere near worn out according to my Park chain checker. Drive train stays pretty clean and chain and cassette only get an off the bike cleaning about twice a season. I've tried White Lightning and while it did the job, I didn't find it any better and my chain started making noise at just a hundred miles or so (but it was clean, I have to say that for WL).
Even with oil based lubes, I think that most really dirty drive trains are caused by over lubing and not taking the time to wipe off excess. I spend a total of maybe 5-10 minutes a week to spot clean and lube the bike I ride 90% of the time so no OCD here.