While at a local photo club shoot, the subject of lens acquisition came up as a subject. It seems like everybody wants the 2.8 zooms, and was complaining of price hikes from Canon. I've had people comment about my choice to use f4 zooms, why don't I get the 2.8's, you never know when you will need it.
I find myself not really needing the 2.8 zoomss, I have the 17-40/f4, 24-105/f4 IS, and 70-200/f4 IS. I don't shoot in low light as a norm and have been able to do all the stuff I need with above lens. I have not found myself needed the extra stop in shooting. For the bit of low light I have the 50/1.4 and 100/2. I feel I have met my needs with out spending a ton of money on my hobby.
I always thought how many people are just purchasing glass that they really don't need, just be feel like they are a "pro" or are gear whoring.
Maybe I'm just crazy...