Garaging is always an issue isn't it as they tend to get filled up, if not with cars then with non car related junk. Interesting what you were saying about water ingress as i have always kept mine in the garage, but may not be able to soon. Whilst even on a couple of times in horrid storms i've never had a drop of water in the car whilst driving it, that's not the same as leaving it out in all weathers. Also without aircon, it takes an age to demist when i've been somewhere and had to leave it parked out in damp weather. I suppose an all weather cover would stop leaks but not moisture. As you say as well, a car on the drive can really get in the way, particularly if you have to take a cover off everytime you want to move it!