Bought a bag of these a couple of weeks ago and found them to be OK on the whole. They'll take a couple of wettings without any problems as long as you don't flood. I did find on a couple of occasions that the sap that is there does have a tendency to find it's way southwards and bunch up between the legs once they're wet though.
As wetman said though, they are easy to get hold of and of course you have the advantage of automated tills which is great for the more nervous buyers amongst us. They're also pretty plain as well which I know some people find important.