The inflator retails for $75.99 on J&B Tool sales site. Here's a link if you want to check it out.
Personally, I think 'Slime' is a stupid name for something like this, but it's not all in the name. In fact, it's if it can do everything it says it does that's important. In the case of the Slime inflator I thought it did just that. It was easy to hook up, quiet, and it didn't take that long at all to inflate the tire that I inflated in this video. So yes, I can say that the Slime inflator does what it says it does. I think this would be ideal to throw in the back of your vehicle 'just in case', but I also think it would be nice to have for camping or if you're on the hunt for a 'barn find' that's been sitting since 1982 with flat tires. Ever try to push a vehicle with flat tires? It sucks, trust me.
Here's some useful links for you.
Changing a Flat Tire Video: http://www.youtube.com/watch?v=zlyrv-h97z8
ETCG Tools Page: http://www.ericthecarguy.com/tools
Discussion about this video: http://www.ericthecarguy.com/kunena/18-The-EricTheCarGuy-Video-Forum/48063-slime-inflator-tool-review#78827
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Slime Inflator Tool Review -Ericthecarguy