I've never been able to get any Wool-Ease. Mike's doesn't carry it here, and WM never has. Apparently LB is pretty sticky about importation into Canada, so my only chance to ever get some will be by ordering it online, or having a friend in the US send me some. I am a touchy feely kind of person, so it's hard for me to buy something I haven't felt up before.
As for acrylic socks... if he wants 'em and will wear 'em... who cares what they're made from? They aren't gonna fit for long anyway! The Bernat Sox yarn that I use for my kids' socks is 75% acrylic and 25% nylon. It washes and dries great, and for about $3-$3.50 a pair for the kids, who am I to complain?