I did this before the sports arrived. I bought the 38mm sport on purpose. I must always have the newest, most expensive iPhone. And everything in my apartment is Apple. I forced myself to buy the cheapest watch. But I too wear a suit for work. So I decided get the 42mm PRODUCT(RED) Stainless Steel black band, and bought the Link Bracelet separately. So now I have the link for work and PRODUCT(RED) other bands I am adding slowly to my collection over time.
You work hard, you want it, people spend more money on alcohol than you will on this watch and they piss it against the wall and are left with nothing to show for it. You have something you love and pride in, a symbol of success and you are keeping up to date with technology.
What band are you going to go for?