I regretted selling my 24-105mm f4 IS, went to primes, 24 1.4, 35 1.4, 50 1.2, but for travelling I always missed the 24-105,
sold a few primes, then a week ago I found someone selling a brand new 24-105 in box, so I bought it, its sharp and great to have it again,
now I have 24 1.4 II, 24-105, and 70-200 f4 IS, nice travel kit, works well.