Depends if you need to transport the scope every time you use it or you can keep it assembled for use at home. Setting up the truss Dob every time would put me off. That's why Skywatcher came up with their Flextube Dobs. Possibly a happy medium between truss and solid tube if you need to transport frequently.
http://www.skywatcher.com/swtinc/pro...1=1&class2=106
Morton