Why not have this event spread across all regions? seems stupid to have it in just one place and exclude anyone who hasn't even begun Unova. Especially, since you've introduced this event so late into the month. Shouldn't be that difficult to just make one giant pumpkin located in each region. What are you losing exactly? You would only be satisfying 100% of your player base, rather than the people who have access to that, which only limits the fun. Looks like I wont be enjoying anything Halloween related this year, since I really shouldnt have to go to a new region, waste time with gym leaders and and tackle my way through just to reach an event.
-Redmirror