I don't even know if that's a good deal by bundle standards anymore. Half-Life and all its expansions are so old that nobody cares anymore (and
everyone has played them), CS:S is worthless in a package that has CS:GO, L4D GOTY is worthless in a package that has L4D2. So in terms of getting something you might give a **** about, you can think of the bundle as $5 each for HL2+episodes, CS:GO, L4D2, Portal, and Portal 2, even though everyone on the planet has played at least half of those by now.
(going full hater mode here for the sake of arguing
)