As you well know from my organic butter ($4.99/lb) I definitely pay a premium for what I consider to be superior products. HOWEVER, at roughly $7.99 per toothbrush, if you have a bad winter of colds and flu you could bankrupt yourself just buying toothbrushes. Not to mention that these toothbrushes are not widely available in stores and so you may encounter shipping costs when buying online. Yikes!
Having said all that, you may want to make the toothbrush investment and here is why: most toothbrushes contain BPA, acrylic, nylon, and phthlalate. Add to this a nice toxic chemical like fluoride that will help these substances to break down and you have your average teeth brushing experience. If you're having problems with bleeding gums, mouth sores or ulcers, any kind of mouth, throat, or lip cancers, or have a suppressed immune system it may be worthwhile to consider a natural toothbrush. Now I suppose the argument can be made that if you're having all those above listed problems you probably want to make a lot of lifestyle changes and your toothbrush may be the least of your concerns, but why add toxins, right?
For the Average Joe who doesn't have bleeding mouth ulcers there is something else to consider: if you have a toddler that likes to chew on toothbrushes invest in an eco-friendly toothbrush. Wash it regularly to preserve it as long as possible and don't replace it until it is gnawed completely but don't let your babies ingest all those toxins. Why bother to invest in the BPA free water bottle and then give your baby a toothbrush to chew on?
Whatever type of toothbrush you use the really important thing is to use it regularly. Having a clean mouth reduces air pollution and that my friends, is Green.