If you are making music as an artist, you may pitch the drums however you feel compliments the rest of the sound. Don't be afraid to pitch them down or up even a whole octave to get some weird effects...
Here are a few tricks I use on drums to experiment with the pitch:
Pitch layering - Often times I will clone a drum or even a whole kit, then pitch adjust the two layers separately. This can create harmonics and dissonance similar to a chord. Sometimes if I feel a drum is lacking some low-end, I will clone it, pitch the clone down, then filter out some of the overlapping muddiness.
Pitch envelope - Example: make the initial hit pitched much higher, say +1200 cents, followed with a quick drop to +0 cents. I find this to work especially well on kick drums. (Essentially a kick is an instant drop from a high frequency to a shortly sustained low bass frequency, additional pitch envelope can increase the pitch drop range and add more punch.)
Pitch bending- Example: over the span of maybe 64 beats, raise the hat pitch +100 cents gradually.
Pitch shifting - Example: let a drum kit run at +200 cents for 64 measures, then +0 for the next 64. Sometimes I like to pitch my kicks according to pitch changes in my sub so they seem merged. Another idea I use is to have every other snare/clap alternate pitch, say +100 then +0 cent, sort of adds a swaying movement to the beat.
Time stretching - a whole subject in itself; but pitch is most definitely involved.
When combining these tricks, you can spend all day twisting a boring drum sample into a rinsed masterpiece. I experiment with these tricks on most of my samples (vocals, melodies etc). Take this advice from an artistic approach, I am a self taught music producer and I imagine there are 'sound engineers' that would rip these suggestions apart.