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You need less than 2 yards and to pay for 7 because of trucking cost is absurd. Small quantity concrete jobs are always a problem and 1.5 yard job is a little larger than a DIY project for most people. There are trucks now that pour just the amount required Volumetric Concrete delivery is what you need to search for. Along with a handyman service not a full time concrete service. They put the high price on because they have a big crew and they can’t make money on a small job. So if you pay it then it is easy money for the trouble. A handy man will rent a small mixer and mix on site from bags. If it took him 10 hours at 50 per hour that would be 500 labor and another 500 for materials. 1000 is a very reasonable price IMO. I personally would do pavers over a gravel base, or build a pressure treated deck and get the tub off the ground. My tub sits on a deck and I think the air circulation below the tub is a good thing for a tub.
I purchased the Hot Spring Grandee 2019 last weekend and now working on getting the Electrical work and Concrete Slab done. I live in Massachusetts (expensive around here), but I was not expecting to be that much. Most people here mention cost for a cement slab (10x10 and 6'') to be around 1k or a little more. My back yard is flat and easy access and the quotes I am getting are around 3.5k (got one around 3.5 and another for 4k) which is absurd. I feel like since I live in a nice area people tend to charge more because of that. Any one in MA which has a good contractor to provide the contact?I am definitely thinking on cancelling my order if this would be the price for the concrete slab (Electrical is around 1.5k which is what I expected). Thanks