While there's a certain amount of showiness involved, they're also designed to keep players upright, awake, and sitting properly as to not damage their backs during extended gaming sessions.
There is immediately a homogeneity and fluency here, a lack of showiness and a semantic cohesion over scores of pages that give quite a different experience.
In his youth he appears to have revelled in his command of the instrument, and in his maturer years he offended the critics by a showiness that bordered on charlatanism.