Not that I'm anxious to pay more than I absolutely have to, but here are some comparisons as food for thought (I have every version from P8 thru S-Plat, minus X1 and X2):
In January of 2000, I paid $99 to upgrade from P8 to PA9
In September of 2003, the upgrade from S2 XL to S3P was $179
In August of 2006, the upgrade from S4P to S5P was $179
I don't remember the pricing for other upgrades - these happened to be handy at the moment.
My point is that having the price for the top tier application increase in price by $20 from '03 to '16 -a 13 year span- isn't all that bad.
I will be more than happy to see $149 or $179 pricing, depending on what all ends up in the package, but I don't see $199 representing a really aggressive price increase either.
I remember some other things too ... like paying $50 for a VST adapter, which is no longer necessary.