The real sense of achievement is the fact that you have created a system with a lot of power, you just have to know where to look to find it!
For example, can you build a windows installation yourself? NO.
Does Windows have a dictionary installed from the start? NO
Does Windows have a manual for every command installed? NO!
BLFS does greatly extend the power of Linux, and another wonderful thing is you can choose what you want and don't want, this is where LFS is really a winner. For example, do you want GNOME or KDE or neither, its YOUR CHOICE! YAY!
Oh well, just my opinions.