I'm going to give you a very superficial (but honest) response that may or may not help. I've seen a lot of guys get into the sport and initially get an aluminum bike only to "upgrade" to carbon a year or two down the road. I've never seen a newbie get into the sport with a carbon bike and "upgrade" to an aluminum bike in a year or two.
To be fair, I've also seen a lot of guys get into the sport with a carbon bike and upgrade to a more expensive carbon bike in a couple years.
What does all of this mean? A lot of folks I know like to upgrade.