I agree - and it is one of the main reasons we try to use as many 1/72 plastic figures as we can in our show games. Bagration - we'll be at Colours this year with our "Race to the Sea" game, which has lots of WW1 plastics on it, including some especially converted for us by Sander von Straeten, so do please come and see us. You can also see some photos of the game on our blog at www.crushthekaiser.blogspot.com
There always has been a certain lack of "knowledge" among some wargamers (but by no means all) about plastic figures. You hear the same old myths time after time "You can't get the paint to stick", "I don't want to buy a box with lots of useless poses in it", "they don't do a wide enough range of figures" etc etc. Many of these gentlemen still think only of the old Airfix days and haven't caught up with the "new wave" of plastics in recent years, so we are doing our best to educate them! The number who say "what, these are plastics" at shows is extraordinary.
The problem also lies with the wargames magazines, most of whom (with one or two notable exceptions) rarely review new plastic figures, feature plastic figures in their articles and so on. If it's not 15mm or 28mm, you ain't coming in!
In truth, for the period I game the most (which you'll not be surprised to hear is WW1) the most extensive range in ANY scale is in 1/72, mostly thanks to HaT, and you can get the aircraft and tanks to go with it (especially now Early War Miniatures have started their excellent range of WW1 tanks!).
So lets give the little plastic chaps all our support!!!