Here's my line-up :
All of this zooms are f4 and for low light (80% of my use) it's not enough. f2.8 zooms would be an improvement but I need faster aperture. My 50mm @ f2.8 is too slow. That's why I love my 50mm because I can shoot anything with that aperture and FL.
Moreover, I love bokeh and I don't think I really need a zoom. So I'm regarding L primes : 35L, 50L, 85L, 135L...
I've just sold my 85f1.8, not long enough for portrait and not so much bang for the buck IMO. f1.8 "seems" too slow and I'm looking for short DOF.
My kind of shooting : portrait, landscape, sport, airshows, familly....
So, what would you do with a +/- 1000$ budget ? I'm regarding a x1.4 converter for help to airshows. Is it so efficient ?