I moved to Asia for 5 months and found the same thing.

I brought a big suitcase full of items, but probably only used a backpack full. I purchased local clothes (for cheap) that were better suited to the climate and everything else was easily replaceable.

I also agree investing heavily into a few key items is important. My Macbook was irreplaceable. I wish I spent more on a better camera, it was a good one but I used it enough to justify getting a great one.

Now that I am back I realize I have a lot of stuff that is completely unnecessary. It is surprisingly difficult to get rid of, but I am donating it in chunks.