I work in environmental conservation where sources of funding to further our interests are badly needed. I was recently doing research on excise taxes.
The one most are familiar with is the 11% tax hunters and anglers have paid since 1938 on fishing poles, guns, ammo., etc. 100% of this money goes directly towards protecting and enhancing game animals and their habitats.
Alternately there is no such tax on hiking, camping or birding equipment. As a result nongame animal programs receive almost no funding. These animals are often endangered or have habitat degradation (remember the bald eagle?). If we paid a tax on non-consumptive outdoors equipment there would be a lot more wildlife to view and more places to view it.
Maybe if we as cyclists were willing to pay a tax on our equipment we could fund our advocacy and needs more adequately. With 100% of funds going to our cause we could only benefit from this. As we all know money is everything these days. Just something to think about.
By the way, people fought enthusiastically against any "new tax" on outdoors gear. They won, and now the nongame program in my state only gets half the money it needs to even run.