What do you spend any extra tech points on?
I make all of my villagers younger so they effectively live forever, although I also rrun my game at half speed so they age slower.
I have also made 7 of my villagers masters in everything.
Instead of wasting time on nursing children, I use Barrel O' Babies to get new children if I ever want them as I get 3 for only 75000 tech points.
Finally, I sometimes generate island events, which are sometimes good, sometimes bad and sometimes you can choose. This is only when I get bored.
If you have extra tech points, what do you do with them? I use the first Virtual Villagers, so I don't know whether it is like that for others...