How old is your hot tub? If the spa has reached its 8th birthday, then the number of dealers or resellers interested in giving it a new home start dropping. By the time your spa is a decade old, the secondhand market is pretty much shut off to you. Unless you know someone personally interested in buying your spa, plan on demolition and/or removal, rather than uninstallation and moving it or shipping it out.
A word of warning and caution needs to be heeded here. It is very possible you will find someone online yet locally interested in your hot tub. Craigslist is an often-used choice to buy and sell hot tubs, since they're practically impossible to ship long distances.
If someone from Craigslist is interested in buying your hot tub, do not let them tell or convince you they can move the hot tub themselves. You do not want any stranger or anyone inexperienced moving a half-ton object through your home and property. Calling in trained, experienced professionals is always a good call. The money you spend on this can save your home and sanity.
How will it get moved? If your hot tub is going to a new place, you have two primary choices. The first is a spa dolly. The second is craning.
Using a spa dolly is a lot easier, even if you cringe at the idea of getting it on the dolly and then rolled out. A few strong backs and an hour and you're done. Craning, on the other hand, takes a lot more work. You'll need professional assistance in addition to the equipment, and at least one prior consultation/planning session is a must.
Is the hot tub in question indoors or outdoors? If it is outdoors, it is going to be much easier to move, regardless of the dolly or crane method involved. Having said that, a backyard hot tub that needs craned out can still be a problem is your home is too close to other structures and properties for a crane to get to the backyard, or even if trees are in the way.
An indoor hot tub needing craned out may not even be practical to remove in such a manner, since an entire portion of the roof might have to be theoretically removed to create access. That's not very likely to be worth the time and cost. At that point, it's best to consult a demolition contractor about destroying the hot tub in the home. A waste removal bin should be rented and placed near the closest door so you and friends and family can spend an hour picking up the pieces and throwing them away.
When you need to conduct a hot tub removal on your property, check into the age, how it can move, and note where it needs to move from. While you can sometimes get this done on your own with family and friends, professional assistance is often needed at some point, so don't neglect any free consultations available to you.
