I think treating yourself once in awhile is totally fine. We need things sometimes. I am paying off my new camera with my Medium money, slowly. And these things are useful to our creativity!! You should go to Full Frame and do the photo prompts now!! :)
Thanks for sharing your real story. You are so strong - you are staying sober when you are alone!! I wasn't ever really alone in early sobriety and it was always when I was alone that I would go off the rails. So you should be so proud!! You are doing the deal!