I know saying this may cause some serious problems... but paintball guns have been using electronic triggers for probably 5-6 years now and they are pretty cheap to make... I am sure something could be incorporated for airsoft that would work.
TM needs to start making full metal bodies pretty much a standard on all their replica's if they want to keep up. They have the best stock internals of any company... why not have the best externals as well? They did a fantastic job on the Scorpion SMG they made not to long ago. The largest piece of plastic on the whole gun was the grip...
I have seen TM's that I liked but for the most part I cant make myself buy something that is pretty much entirely plastic regardless of how good it is.
The few TM's I would definitely consider would be an AUG, P90 or G36 variants. However, Slacker owns an TM AUG, I own a CA36 and I dont need a P90.