I've read the same reports. There's a popular opinion that vinyl mats cause more rust because they trap water and don't allow it to evaporate. My personal experience is I've had very little rust in cars with vinyl mats, and far more with carpeted vehicles because as noted above it holds moisture longer.
I'm not sure there is a decent rubber OEM style mat on the market currently. That's certainly true for the high hump mats. I went with the MIP full floor mat, and I love the looks and durability. I would recommend it for anyone that desires this type floor covering, but do the installation during the hottest part of the summer. They are very thick and hard to manipulate. Heat from a heat gun doesn't last long enough to do much good, so wait for the hottest day in your area to do the install. The mats go well up the firewall and the back of the cab, so work it into position before any trimming.
The installation in my truck begins at post #219 in my build thread. I use cheap rubber mats to cheap the vinyl clean. Mine is nearly 2 years old and remains as new. A simple swipe with a damp cloth returns it to like new clean condition. For a daily driver it's great, although some question whether or not I had a spray in bedliner installed. It is also very dark black in real life. I doesn't look original, so some may not prefer the looks.
Here's a photo taken a few minutes ago:
