What are you riding now?
I'd buy your first road bike on the assumption you'll be switching to something else within a year. You can get some amazing bargains secondhand.
No I disagree Graham, why would you do that? I have the same bike I got in 2014 and it is going to stick with me. I have upgraded my wheels but the frame is the same. There is no reason to spend twice - as Kos says.
@GrahamP started
"You will always be in our hearts and on our roads." - @Giro d'Italia on Michele Scarponi
What are you riding now?
I'd buy your first road bike on the assumption you'll be switching to something else within a year. You can get some amazing bargains secondhand.