Perhaps just to lighten the mood I would like to make a small comment in support of the humble drag lift.
How often do we hear "experts" extolling us to warm-up before setting off at the beginning of the day? But how many repeat the warning about dismounting from Cablecars, Gondolas, or chairs? I find that using a "surface lift" keeps me just warm enough that additional warmups are not required whilst a long journey up in/on a non-surface lift often leaves me cold and stiff. From the point of view of continued warmth I would like to vote for surface lifts. Additionally the use of a drag gives many people the chance to "stretch-out" tight legs and re-establish blood flow to cold feet.
Perhaps for those who only get a few days skiing per year the chance to get some "free" fitness training may be more valuable than the comfort of a chair ...
I'd also mention that a resort with a high level of surface lifts is unlikely to attract a high percentage of snow-boarders ... Don't know what that matters but I thought I'd mention it
Jan