If all I was doing was cutting lams for trilams and glass bows from dimensional lumber, roughing out the bow profile, and cutting riser pieces for such bows, I probably wouldn't use the biggest, meanest blades my saw can handle, but I also spend considerable time making the above dimensional lumber from logs that barely fit in my saw, cutting staves from thick, green, split out knarly chunks of osage, and the wider, thicker blades are stronger and work better for that. My saw is a 14" Craftsman and I often wish it was bigger and stronger... but I get by. Those big blades also do a fine job of cutting lams for trilams and glass bows. The only downfall is they don't work too good in tight curves, seldom a problem for me.
I just ordered one of those quick release tension arms for my saw, so I'll be able to change blades in seconds. Not that I change blades that often, but when I do, I hate standing there cranking on that little knob.