Pity we cant mention the retailer's name as they are good. I would say that for me, so far, there is no outstanding difference between Sib 7 and Sib 7.5. Nevertheless the build quality remains proudly high and I did probably get value for money. I hope that next big update beyond Sib 7.5.1 will be either free or low cost, having invested quite a lot over the years. For notation tasks and ease of playback and editing, I would be surprised if any other software could hold a candle. Sibelius is top notch. I would love Sibelius Sounds to be significantly improved to save having to tweak them by adding effects in the DAW. Yet, Sib 7 Sounds are numerous and are of acceptable quality when working within the program itself. In my case, I'm not composing and producing music to market for profit but aiming for excellence in the hope some day a conductor will see fit to have some of my work performed live. Until then, the electronic, digital end product needs a quality that will inspire the listener and spur the composer on to greater accomplishments.