I used to be the same way. before when i was trying to get sober all i wanted to do was smoke some bud, and the guys i got my weed from were in the hood. so after a while of buying just weed, the guy told me that he was out of weed, but he still had heroin. i was like.. "well my trac marks have fully healed, and just 1 shot wouldn't be so bad". long story short i ended up with a needle in my arm 6+ times a day.
I know that i'm fucking powerless over ANY drugs, that includes weed. I can't fuck with the shit. If I ever do get high, or ever around weed. I'm going to want my drug of choice.
Don't beat yourself up over the shit man, yeah people relapse. you made it back and your not dead. $60 bucks is still some change, but luckly it just stopped at there.
If your going to weed route, don't really know where you live at or your situation.. but when I was doing just the weed, I always kept a bag of spice laying around put up. So when I did run out of weed I had that to fall back on until I could re-up.
Times have changed for me now, I'm in rehab

, pushing 50 days clean. There still are times where I want to get a sack, hell every time i have $ in my pocket. I quickly think of food, and the biggest bag of fucking cookies at wallmart. So here lately I always carry sweets around with me to kill that craving to get high.
hang n there man.