One more little thing, not really a big deal. To the best of my recollection, in VV1 you do need a master builder to solve a couple of the puzzles and a master scientist to solve 1 puzzle. I won't tell you exactly which puzzles these are unless you specifically ask me, cause I don't want to spoil any surprises for you.
Other than that, in VV1 the only real advantage to having masters are that master scientists gain tech points faster than and master doctors will heal villagers faster.
While it's certainly nice to have masters in all the fields, with the exceptions noted above, they aren't a major advantage to the game or necessary for completing it to success.
(don't worry, if I'm wrong about this somebody will surely correct me post-haste \:8 )
Now when (not if) you move on to VV2, that's a whole nother scenario. There you'll need, and want, masters a plenty and the sooner the better!
Enjoy you're game, you'll soon be an addict like the rest of us!
_________________________
Fan Fiction Mentor

Avvie by Airstream Raider
Where have all the Fan Fiction Fans gone?
(I miss Laurence cry)
I miss my wife cry