you spend good money on a TOTL synth, ...then people look for "more sounds" to buy and add to it? why not just use what's in the KB,...isn't anyone happy with the factory sounds & tools? I don't get it...?
No, they aren't. Expandability of sounds has been a characteristic feature of up-market synthesizers for a long time. As individual preferences of sounds are different, it is a possibility to "individualize" the instrument to a certain degree. I want symphonic sounds, somebody else wants electronic dance sounds etc., it doesn't make sense to put everything imaginable into the instrument as presets.