In reply to New POD:
as per the other comments.
Decent tyres cost a bit more to begin with but save money longer term in terms of inner tubes etc and not having to change a tyre in the freezing rain.
I use specialised armadillos but the marathons get good reviews as well.
Picked glass out of them on several occasions where it got stuck in the tread but failed to cut any further.
Unlike some lighter race tyres which got shredded in a week.