I'll still buy the 60-250, and for once it have a justification : sailing pictures.
- I already own a 50-200 and I felt the need for a longer lens while shooting at sea.
- Weather sealing is definitively a must for more intense weathers.
- I need a faster lens because of using a polarizing filter will filter the light by 1 stop or so. Exposure shall be very fast (1/500s is strickly a minimum at 150mm for example)
- But aperture of 4 is fine since having 2.8 would have lead to a heavy lens, photo on a boat are always hand held.
And since next sailing saison will start for me in April, I'm that in a hurry to spend money on it