i dun really need wide end and i miss this extra 15mm.. how?
get a 85/f1.8 or 135L.
imo for such general purpose zoom lens, being able to go wider is more important then being able to reach out further.
then again, different strokes for different folks.
if you think your REALLY need that extra 15mm, instead of walking a few steps more, by all means get the 24-70L.
you can consider keeping the 17-55 for the occasional wide angle use or sell it for a 10-22 or forgo the wide end altogether since you said 80-85% of your shots are >24mm. :dunno: