|Scooby-Doo and the Monster of Mexico||=|
The Region 1 disc is basically the same as the local version save for a few soundtrack differences and a couple of minor extras.
The Region 4 disc misses out on;
The Region 1 disc misses out on;
Obviously the content alone swings this in favour of the Region 1 disc, but the main feature and important extras are the same, so I'd suggest to pick it up wherever you can get it the cheapest.