Economics aside, I applaud your defense of the "old guard" farmers who have kept their family heritage vineyards in the ground. The sad thing is that the technology of viticulture has improved to the point that many very high quality wines are made from young vines. The average wine consumer has little or no regard for vine age and since our "wine boom" in the United States is a relatively recent phenomenon, many new plantings and new "wineries" get most of the hot press.
Sad, but true.
I honor your work and the work of your neighbors and those who came before them.