Pianos can be rather expensive also, depending on what kind you get, as with all instruments. I certainly agree, Accordions are very awesome but expensive.
Michel van Briemen - I got a decent 120 bass piano accordion for $80 on craigslist. Just make sure all the buttons work, that the bellows doesn’t leak air, and that it has no rusty reeds or musty odors (mold).
Epic cover, love it! (And yea, I know it's old, so what, old stuff deserves to be noticed & appreciated too) Especially love 0:56 - 1:10 on 1.25 speed, fits perfectly to some goofy fighting. If I was a game dev, and had a pub-fight scene, I'd definitely love to use this there haha.