... I realize that I am hella late in posting a reply to this thread. But I figured, what the heck, I might as well throw in a shout out...
I have worked with both Reason and Cubase, at different times in my musical hobby career. True, they were the older versions, but I still think my opinion is just as good.
I started off with using Reason, back in college. And as it was mentioned before... Reason was probably a good program to start off with, when I was just being introduced to music technology...
However, when I started using Cubase. I found that I had more creative flexibility than I did with Reason. It didn't take me long to figure out how to use it (cut; move; drag; paste). And even though I have been using it for a long time, there is always something new I have yet to discover about it.
So ultimately... Reason is good for taking the easier and cheaper way out in buying music software.
However... at some point, you will probably out grow Reason, if you start becoming more and more serious with music.
So, logically, it probably would be better to get a program that will give you the creative flexibility. Rather than having to learn a new software, later on down the line when you discover the limitations.