Having done this last night, I totally agree with the RNG timer being a PITA.

I was running around the Goblet for about 2-3 hours while doing some duties in between. I was literally running around from plot to plot hoping I'd find one that was allowed me to purchase it but kept getting the dreaded "This plots isn't available for purchase" message over and over again. I ran into another player, who I guess had noticed me running around looking for plots who told me that he'd been waiting for a particular plot for around 6 hours. (as if to shoo me away)

I ended up leaving my character AFK and went to watch TV for about another hour or so. I switched over to the game, clicked on the sign and ended up getting a house in a pretty cool loacation. :-D As satisfying as it was, it was still annoying AF! This was around 9-10pm CDT on Goblin.

I get why SE implemented this...but I feel like there needs to be another safeguard for this opposed to some invisible timer.