You assume that the RPC community has even a modicum of sway in how things are done on Balmung or Gilgamesh. The fact of that matter is this is merely how things are done in FFXIV, and by trying to make a stand and saying "we as an RP community shouldn't do this!" you're only excluding yourself from an already acceptable practice (as you yourself pointed out).
I've seen people on here who have sold their plots and offered a discount to any players from this community, or were willing to negotiate prices to a lower amount than they would have ask of any outside of the RPC, and to me I think that is more than reasonable. Asking for anything else I feel is a bit greedy, and this is coming from someone who worked his ass off to get enough money for a small house only to have the opportunity taken from him by SEs poor choices.
Whether a person wants to sell their plot (and for how much) or give it away should be up to them, not dictated by the community.
I've seen people on here who have sold their plots and offered a discount to any players from this community, or were willing to negotiate prices to a lower amount than they would have ask of any outside of the RPC, and to me I think that is more than reasonable. Asking for anything else I feel is a bit greedy, and this is coming from someone who worked his ass off to get enough money for a small house only to have the opportunity taken from him by SEs poor choices.
Whether a person wants to sell their plot (and for how much) or give it away should be up to them, not dictated by the community.