It’s all about implementation. Yeah, a modeled instrument objectively has the potential to beat sampling on paper, but that doesn’t mean any given modeled VST is going to sound great in reality; few of them really do ino though the ones that work, work pretty well (SWAM horns being the best probably). And it depends on the complexity of the instrument involved. Though modeled pianos have a lot going for them I just don’t think the sound rivals a sampled piano (Painoteq 6 may change my mind, we’ll see. Electric pianos, otoh, do very well. All just depends. Modeled strings will almost certainly be the future but for now they stink. (Of course, sampled solo strings mostly stink too. But less.)