Honestly, if the speakers are scoring exactly equally with you, then obviously go for the less expensive ones.
But I can't believe that's what happening. I suspect you have a mild preference for the Gamuts, but are finding it hard to justify on the basis of the price differential.
If both work in your space, if both are spouse-acceptable, if you can afford the Gamuts, then only you can decide if the improvement you hear is worth it to you. I have to say that, two or three years after making a purchase, I've certainly wished that I had stretched a little more back in the day, as I'd then have ended up keeping that particular item longer.