welcome Hitoshi, you're right - getting extended library for the special edition collections _is_ an upgrade from the standard library (to full so to speak), second adding the SE standard plus subscription would be another expansion (or upgrade if you like this term more)
the discussion above was more about an *upgrade* from SE to SC (symphonic cube) or SP (super package) resp. individual *big* collections and a request for discounts if one decides to do so - at least that's how i understood - and VSL does not provide such an upgrade path (means discounts) currently
christian
and remember: only a CRAY can run an endless loop in just three seconds.