It seems the BTC addresses are unending and you generate 200 addresses per year. Is there anyway to profit from that? Anything at all?
yes. some people are interested in a unique address. so it's possible if someone is interested in your address and want to buy it. you can sell it for high price. it's one of simply way to get bitcoin, so people generate their addresses or they just want to generate without earning profit.
No they themselves can create it(an address with a similar prefix, as the combinations are in more than billions) for little to no effort.
Only way I know of making BTC from BTC addresses is by mining the Clams(an altcoin) on addresses used before CLAM was introduced, and then trading them for BTC