Is this Klipsch upgrade worth it?


I presently own a pair of Klipsch Forte lV's. Now I'm thinking about a pair of Cornwall lV's. Is this a worthy upgrade? Hope to hear from Goners that have experience with both. 
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From what I read people like the Forte very much,  I don't think it would be a big upgrade. LaScala would take you up a giant step.
Fwiw, I demoed the Forte III when that was the current model and was surprised at being underwhelmed. As a Klipsch fan, I had original Heresy and KG 4.2 for years, I then demoed the Heresy IV and thought it superior to the Forte. I was looking for a bigger sound though and tried the Cornwall IV's. I bought them and 1.5 years later I'm still very happy.

I also demoed a range of solid state integrated amps with the Cornwall IV's in the 10k price neighborhood. They all sounded excellent. In the end I bought a Luxman L509X that I liked best. Always loved the clean look and pure, uncolored sound of Japanese gear.