Is it justified? I'd give it a definite thumbs up. But...
I purchased a Viking Megaquilter and Inspira frame about 4yrs ago. It was a good deal, I had the money, it would have paid for itself in a year. However, I found after just quilting 4 tops my knees and back just could not take it. My point - please take a good long test drive before you buy anything.
Good luck.