Another way to think of it that you get to run a 2nd OS for $49 on your current hardware with the latest hypervisor features and support. That's good deal in my view. In some aspects, that's almost like getting a 2nd laptop/desktop for $49.
I have used Parallels since version 6.x and think they put out a quality product. I'm still on version 9.x, but haven't needed to fire up my Windows 7 VM in months. May wait awhile to sort out what I'm going to do with my 4+ yr old Mac Mini (runs Parallels) before I update to Parallels 10.
Update: The fact that we (computer users) can even run multiple OS's on the same hardware platform and host OS (in this case OS X) is more than cool. I've been around awhile, and still remember well punch cards, rotary phones, radio, black and white TVs, and other "ancient" technology from the last century (thankfully for the punch cards I was still young enough to not be out of school and into the industry at that time). Not picking on you RGT70. Just trying to help share a broader perspective for how much and how far $49 goes
Be happy that we (me included) live in an era where we have such cool stuff