Well, a PSR S900 is TWICE the weight of a crap POS toy arranger... But that doesn't stop you from lugging one of those 25 lbs. behemoths around ( ), because you have decided that the extra weight is worth the increase in capability, sound and construction...

And yet, mysteriously, having made that decision for yourselves, you remain baffled as to why anyone else would make the SAME decision...
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An arranger is just a tool. What matters is what you build with it..!