If you have the trees close to the house, it is worth while to tap a few, just to get a feel for what your getting into. It usually averages out to about a litre of syrup per tap, so if you only tapped 10 trees, you'd have enough syrup for the year, and then some. I have one litre left from last season, but I've been hanging onto it hard. Everyone wants some, but I don't make enough to be giving too many hand outs. I'm going to start storing mine in smaller containers so I can hand more out to friends etc. this year.
Its a fun thing to do at this time of year. Not much else going on when the ice is melting.
S.