I totally agree. A 24-105/4 was one of the first lenses I bought when I switched to Sony four years ago. Makes a decent one-lens walkabout kit and covers everything from wide scenics and interiors to tight portraits. It was, for me, a dual-use lens for both my paid event work (lit group portraits) and my walkabout scenic adventures.
But, I ditched it this summer. I strongly prefer more reach for walkabout, and after considering a 28-200, I went, instead for a 20-40 & 50-300 combo, as this is still very portable and I can combine the 20-40 with my 35-150 for event work.
If there were a decent, smaller 28-135/3.5-5.6 for under $700, I might be interested.