On the contrary, I think a sizeable portion of hobbyists will choose this era. The reason Baby GMs, 201s, Mk2s, etc. are popular right now is because they're what a lot of us are familiar with, having grown up looking at them. I think nostalgia has a lot to do with it. Of course, there will always be a few who are more interested in the historical aspect and choose to model something from before their time, while some have interests which lie in the present day...