bitflipper
But $400 - or even $300 - for a collection of sampled arps? Really?
Its not on my shopping list, for sure, and not just because of the price. But if I read it correctly the arps are not sampled, rather its a collection of instruments that are controlled from a scripted sequencer in Kontakt. There are cheap and cheerful Hollowsun and Hideaway Studios products that utilize the Kontakt arp / sequencer features and several guitar libraries use the features for strumming patterns.
To me, the most impressive implementation I have seen so far are the phrase generators in Kirk Hunters TVAC4 updates for his string libraries which enable the construction of realistic swells and phrases that would be very hard to create in a DAW.
I can see how having real time control over the arp parameters and the ability to store that control as automation could be very appealing to those making certain styles of music. However there seem to be a awful lot of VSTi synths with that type of control that sell for a fraction of the price.