Hi Toxic,
Yes, that is how I keep track of how many prims I have rezzed and how many are available. I can see that I have over 300 still available..I didn't specifically think to see if anyone else has rezzed prims on the land, but I will do that. Even so, I would think with 300 available I should still be able to rezz a 255 prim structure, even if someone else has rezzed prims on the land?