Often, miscellaneous activity patches (camporees, etc) and surplus rank and position patches don't have too much intrinsic value (unless they're really old - 1970s and before). Don't be surprised if there isn't much interest on eBay. At tradorees, you can often find these patches in the "50 cent buckets". They are great for new traders however, who don't care about rarity - they like variety, colors, shapes, e