This question gets asked alot but there is no true answer. You talk about job site saws and noise, that is because they use universal motors such a shop vacs do and are many times direct drive like a skilsaw. Smaller model building saws are just that small and use a smaller usually underpowered motor. The Byrnes saw was mentioned and yes a nice saw but again limited in what it can do and the huge factor for me that is a negative with that saw it is not a tilting arbor saw. You can not angle the blade. Instead you have to buy a contraption table or make a jig to incorporate stave cutting. The blade height will limit you also for the amount of wood you can cut. Must cut slower to allow motor to keep up. The price of that saw is too high for what it does.
Now a full sized contractor saw, hybrid saw or cabinet saw is the perfect workshop saw. It does require space but for accuracy, versatility there is no better saw on the market that can do all it can do. Vary the blade and the sky is the limit. as with all tools they too have limits. Now knowledge and safety are paramount with the use of all tools in the shop but with a tablesaw they are premium. Bandsaw can do what you ask if it is well tuned and the use of jigs and fences and miter gauges will do just fine when segmenting. heck I segment using my router on my lathe. So to again answer your question there is no definitive answer. Can give recommendations if you want to choose an avenue but I would stay away from those model building saws unless that is something you want to get into or have alot of money to throw around. Heck you do segmenting with a hand saw and good miter box. How detailed segmenting you want to get into. Sorry but that is the best way I can answer this question.
