yes, as long as you make sure you don\'t spend all the money you have after a round on extra\'s you\'ll be fine.
for instance, when you have 10 archers working for you after a round, be sure, that when you are \'planning\' on buying 10 more, you\'ll have the money before the round starts, so to sum up: you already have 10 archers, which makes 10x200=2000, but that\'s not enough, cause you\'re planning on buying 10 more, so before you start that round you\'ll need 20x200=4000, capiche?
btw. I\'m currently at level 60, man those rounds get longer and longer! I have about 2100 archers, and aproximately 1000 converts, 80000 casualties and 16m points