Was I right to let my Budgie go free?

I bought a budgie two weeks ago from the pet section in the garden centre. I named him Bryan. I tried to teach him to speak but it was no good I must of been 'sold a dud'. Anyway, Bryan seemed very depressed in his very small cage so I decided to let him go. Without hesitation he flew out the window. I think I have done a very good turn here and hope he enjoys his life in the wild.