Is there a specific patch you want but just can't find? There are many different ways you can search for patches. Some are great for finding those rare patches that no one else seems to have, while there are other places and methods to use to find cheap patches. It all depends on what you're looking for and how much work you're willing to put into your search.
A lot of bikers search for their motorcycle patches at biker rallies. They browse the many different vender booths for their favorite patches or for those that are hard to find. Some of the benefits of this is that you can physically see and hold the patch, allowing you to see just how large it is and if it will fit on the item you want (if you have the item with you). On the downside, there may not be a huge selection of patches at the rally, especially if it's a small rally and there aren't a huge number of vendors present.
If you want a large selection of patches, you can look online. There are a number of different places to purchase patches, including online stores like The Cheap Place. You'll often find patches cheaper online because the site can purchase directly from the factory that makes them, so there's no middleman. Many sites even offer discounts on purchasing large volumes of patches or offer bulk deals and assorted packages that offer a large number f patches for a great price.
While you can find some rare patches online, not everyone deals over the internet. Yes, it's becoming more and more common, but there are some older patch dealers and bikers who aren't online. You'll have to find them at rallies or biker club meetings.