I just ordered the 70-300L as a travel telezoom - lighter, but more importantly more compact than either the 70-200 II or 100-400, fits vertically in my photo backpacks.
That's not why you did it . . .
You did it because they're like Pokemon to you . . . gotta catch em all.
Well, I am not neuro but this can not completely right. He does not have 500mm f/4L IS II, 800mm f/5.6L IS, 200mm f/2L IS, 200-400 f/4L 1.4X.
And - I think - he does not have 8-15, 17TS-E, 24 1.4II.
(@neuro please can you verify?
So you see there's always room for ... improvement ... OK just joking.
To tell the truth I have suspicions that I have L.A.S (Lens Acquisition Syndrome) but at least I have sold a few up to now (6 lenses plus the battery pack of my stolen 40D)
Never the less very interesting comment, I am sorry I replied to your post since I am not neuro but your post may have struck a chord with me