I have to play chess with my feet. Shoes which give me room in the toes may be loose in the right heel. So something higher than a shoe not only means more support and cover, but it means I can go a half-size up, bulk out with socks etc, and get a bit more heel-grab.
Goretex is okay till it stops working, which, for me, it usually does after lots of dirt and stretching.
Nonetheless, I've bought a Goretex boot, the Asolo Fugitive, for my next stage of the Camino. I may have been better off with lighter Asolo boots with moderate water-repellency, but my next trip may be a very long one, taking in the Via Francigena, and include some camping out.
I've moved from Vasque to Asolo because the heavy rubber reinforcing of my Vasque boots was too unyielding at crucial pressure points.
I really think it's worthwhile trying to go lighter and lower with shoes/boots. If you're a warm weather walker (I'm not), or you're lightly loaded, it's got to be worth a try. Any probs, and you can still buy some Lafuma or Chiruca boots locally, light synthetic ones which don't need much breaking in.
On the subject of rainwear, today I had to walk 16 or more k's through flooding forest to get to my weekend job. I used an expensive Exped daypack poncho which I seldom use. It was not the least bit waterproof when I first bought it, and even after proofing with Nikwax product, it's still not completely waterproof...as I learned the hard way today!
There are some peculiar products for sale out there, so threads like this, even if not conclusive, are well worth reading.
Cheers all
Rob