I say go for adoption. All the animals (dogs and cats) that have been part of my family, I've adopted. I adopted 1 from a shelter, and the rest I've adopted from the streets. Some were lost and abused and some near starvation. Me and my family helped them recover and created a well-deserved home for them. No living being deserves to suffer. I think that you should research further to see which option is good for you. In the end though your new pet being adopted or bought, will not hinder the ability for your pet to love you, or you to love it back.