We were in the exact same situation as you a few years back and I pushed MFL to my league-mates, but in the end, we decided that $150 is not that much.
Think about it: if you have a 10-team league, that works out to just $15 per team for the year. Then divide that by a 15 game fantasy regular season and that works out to $1 per week for an owner. If you make the playoffs, then your entertainment costs less than a dollar. If you have a 12-team league it's even less than that.
So, for less than the cost of one cheap meister brau from a keg, you get your league managed for you. You won't have to deal with the headache of learning a new system or having to teach your fellow owners how to use the new system either. Writing that check is a bear at the beginning of the year, but it's worth it in my book. By the way, I am not a CBS employee, just some bloke who has been with Sportsline since 2000.
That said, if I were starting a brand new league, I would seriously consider MFL, like Buddy suggested.
