If you buy it from the official website then the least expensive I think you’ll end up buying the belt for is $175-$179 and that’s using a discount code. The MSRP is $199.
Now some folks have bought the same belt via Ebay for under $150 supposedly. This is possible, however I feel there are some risks associated with buying a device like this off of ebay when you could just buy it direct.
First off you may not get the same 2 year warranty and you definitely won’t get the 60 day money back guarantee.
There’s also a slight chance that you’re buying refurbished product, return or used device rather then a new one. Not to say that there’s an issue with buying a refub or used belt, but you should know ahead of time that’s what you’re getting and pay accordingly.
Now this last point is something I just discovered lately, and as of yet don’t have proof but it’s something to take into consideration. Buying from an auction site could mean you end up with a non authentic product. There are companies who copy designs and make them look the same and then sell them on non official websites. This is just something to watch out for.
If it was my money I’d spend the extra bit to buy from the official website. Why? Because I get a good warranty and I get a good guarantee.