1) Ever try to upgrade msvc versions? It's always a huge problem if you're using libraries you don't have source for. Not to mention the 50 million linker issue

1) Ever try to upgrade msvc versions? It's always a huge problem if you're using libraries you don't have source for. Not to mention the 50 million linker issues if one library is linked statically and the rest dynamic. There are still people on like msvc 6 because of this. 2) Header only libraries are horrible for compile times, especially heavily templated ones (and if you use c++ generics it basically has to be a header library). The reason boost is banned from a lot of cpp projects isn't because the library is bad, it's because of compile time.