$10k marketing budget. PPC or Direct Mail?

[Zach Faris]

I have about a $10k marketing budget and really want to commit to PPC or Direct Mail (or cold calling list). I realize I could spend $5k on each, but I don't want to go into both halfway committed and be disappointed that I don't see results from either. It seems with a $10k budget you should be able to commit to one and see results. 

I lean towards PPC, because that means someone is searching rather than me having to mail. I am looking for your wisdom.