We ended up buying the JLX-L, $8.5K out the door (including tax), including a cover and cover lifter, step, and chemicals. I think they would have gone lower but they have to deliver it over a hundred miles each way, remove the existing hot tub, and hook it up, all things they normally charge for. We were quoted $800 to remove the hot tub we have, and another $500 to haul the new one from the curb up to the house and hook it up, so Costco was going to be an extra $1.5 just for those conveniences. We are also getting the JLX delivered right away, and would have been without a hot tub for a month with the Costco option.The Costco tub was $5.5K on sale, or $7K not on sale.
So, basically, I think we paid an extra $1.5K to get the JLX from Jacuzzi (compared to sale price on the Costco hot tub), and in return, got a 5 year parts and labor warranty v. a 2 year on Costco, and an assurance of strong jets. The downside is that we will have to pay $125/incident for the Jacuzzi repair-person because we are out of the area. It would have been a much easier decision if we would have been able to buy from a truly local dealer, and avoid the $125 fee (or if the Costco tub had not been on sale), but I feel pretty secure that Jacuzzi makes a solid product.
Really looking forward to getting it delivered this weekend! I feel a bit guilty, like I bought a more expensive product without good reason -- part of me thought we should go with the one pump, $3K Costco hot tub, but that was so hard to do after I realized we were going to have to pay $1.5K to even get the hot tub into our backyard and heating.