I recently bought a small 25x25 world guarded plot for 37.5k. I am wondering if i could buy another one but instead of placin git somewhere else make it an extension of the existing one as in adding 25 blocks to each edge making it a 50x50 plot .
You would need to buy 3 more 25x25 plots to make a 50x50 area. I do believe that you can just extend the WorldGuard, however.
Yes, you can extend your worldguard as much as you want. 4 25x25 zones are the same as 1 50x50 zone, though.