I did look for that feature however I couldn't find it under the configuration section of recovery so I was looking into some plugins that would allow me. It turns out that it's simply not available on the PSP Go, but I can autoboot pyMenu on my 1k now, so I'm happy either way (although my Go gets more usage sadly).
Also, I can completely understand your not thinking it necessary with regards to the game directory. I was just wondering if it were at all possible so that I could refine it such as just having my PS1 games under the game section. This was because I wanted to keep some bootable configuration files and applications on my psp, but not visible all the time - I should probably just stop being lazy.
Anyway, thanks for all the help.
Edit: I think I spoke a little too soon. The autoboot feature doesn't seem to be included in PRO-C or PRO-B9/10 at all.