If I'm not mistaken, the restoration suite is now a separate purchase. When I upgraded from Samplitude v9 to ProX, a lot of people complained about its absence and they gave it to us, but I don't think it's included it with new purchases.
When Adobe bought CoolEdit and didn't offer a decent upgrade path, I picked up Magix Music Studio for about $50 to use as an audio editor. Music Studio (NOT Music Maker) has a subset of Samplitude's functions but appears to use the same audio engine. I was very impressed by some of its features and ended up buying Sam 9 and now have Pro X Suite. The first thing that impressed me was that loading a large wav file was so fast that I thought something was wrong. Both Cake and Cooledit took much much longer. Another thing is that it can display frequencies right in the wav display (comparisonics). For example, when I see yellow in a bass line, it usually means fret buzz and I can quickly zoom in on it and soften it with the spectral editor, without having to listen to the whole thing. Pretty handy.
Sequoia, OTOH, seems to be geared towards pro engineers who perform a lot of repetitive tasks every day and has time savers geared specifically for them.