This weekend I sold my Canon EF 28-135mm lens. It was once bought to use as an every day lens, but as it turned out, I prefer the EF 24-70L for that and most of the time I actually lug around most of my lenses anyway, so the 28-135mm didn’t get much use at all. Also, it makes room (both in space and financial) for my next lens(es). I’m currently looking into a Macro lens and a telephoto lens. For the macro-lens I will most likely go for the Canon EF 100mm 2.8 L IS, a lens that gets great reviews and looks like a superb quality lens. A bit more costly than the old version lacking the IS, but the newer version seems to be a lot better in quality.
For the telephoto lens I’ll most likely end up with the Canon EF 100-400mm lens (not that this is by any means a bad thing!). I’m also looking at the 300mm lens (at f/4.0 a bit faster, but lacking the versatility that the zoom brings to the 100-400mm) but all in all, from all the reviews I’m reading, the 100-400mm is simply a more effective lens when you have different subjects. Mine are going to be sports and landscape/wildlife. A faster lens (300mm 2.8 or 400 2.8) would be better, but seeing as this still is a hobby (of some sorts), the price of the fast primes are simply too high.
Hopefully I’ll have some new lenses in a few months, will keep you updated.