There is no guarenteeing that when we get to buy the plot that it will be the same price as we are seeing it now / or in patch notes. The plots of currently available areas seem to go up and down depending on demand / in-world economy.

I'm just saving what gil I can in the hopes of getting some sort of plot. All of the ones in Kugane are near something of interest be it the vendors or the beach or the 'secret' cave bit.