Oh my goodness. In the US you can get ducklings for about $5.
wow.
In that case, yes, YES to the Cayugas. Why not? If they don't turn out great quality it sounds like you can sell then for a profit, offsetting the feed costs for the other birds?
They are very cute. $20 unsexed seem pretty expensive but I live in the U.S. Is that a reasonable price in your area for non-show stock? I guess what I'm saying if it it wouldn't cost too much more you could seek out babies from show parents?
But, yes, always more ducklings. :lau