My lock button is jammed?

My lock button is jammed for my Itouch 4g, I've had it for four years. I don't live near any apple store just a mac hous and they said they can't fix the itouch. Am I out of luck? Is there a place online I can sell it and get enough money for a new one?

I know it will be near impossible for me to fix it, my dad used a scribe on it to see if it was just clogged by like dirt, but now he thinks that the spring or something underneath broke or moved out of place, is there anything I can do? 😕