I raise Flemish for meat I personally HATE to kill any animals... so when I do I want it to count... our last flemish giant provided 3 full meals for our family of 5! They are big boned but so are turkeys... They need the bigger bones to support the larger body which = more meat!
That being said they DO eat the food as well... so we did break down and buy some new zealands as well... but if you want a large roaster rabbit or just a lot of meat then Flemish is the way to go... in the end you do have more time and money in growing them out though...
From what I was told, the FCR of a flemish is much slower than NZ or calis. I have mixed mutts that are 1/2 cali, 1/4flemish, 1/4NZ. that mix seems to work extremely well for me. I keep a pure bred buck and breed him to my meat mutts.
Back to the original thread question: If you find yourself not being able to butcher, it's easier to get rid of cute fluffy bunnies than a bunch of quacking ducks. At least for more money. I sold off a bunch of my meaties (rabbits) for $60 each. I don't mind having a little less meat in the freezer at that rate!