Making your own is a lot cheaper.
While I love the convenience... it is a lot cheaper to make this yourself. The lime seems the most popular and it happens to be the easiest to make. You can buy Redmond's real salt, use the fine ground popcorn variety, as your sodium. Add some CALM for magnesium and you can get potassium powder quite cheap. You can get True Lime powder for the lime flavoring and use a packet of Stevia/Erythritol for the sweetener.  Voila! If you want the raspberry, just get some freeze dried raspberries and crush them into a powder and add a little.
Rating: 4 stars