I like your choice, a different roast for every coffee moment of the day. Nice!
Coffee roasting is a whole world. Back in 2005, I started buying artisan coffee from a colleague of mine who had a small farm in Caripe; it was then that I learned that roasting made the difference because his coffee was superior. But it wasn't until about ten years ago that I was lucky enough to receive a very thorough explanation from a master roaster friend of my brother. Since then, I have always tried to have some light roasted coffee at home, but I can't afford it right now, as the economy is not good. So I stick to my medium roast coffe that I love in the mornings and afternoons.
Knowing all this is great, I hope to see a post explaining each reason for roasting, let's continue our coffee route.