Hello there
You said you wanted to make a game as a small hobby, and so I suppose at the end of the day what you want to be buying is all about how far you want to go with game dev. I don't own realm crafter (and neither do quite a lot of people here - which may be why you've got little response) but I see that for having fun with it, and making games that are not entirely serious, it is good. However for making extensive MMO games and the like, it would be much harder to accomplish.
If you wanted to try out FPS making as well, you could give FPSC creator a go, especially since FPSC X9 has a free version. Then you'd be in a better position to decide whether to upgrade to the full thing. Dark Basic Pro has a free verion too, worth a go perhaps and it's fairly easy to pick up, but that all depends on whether you want to get into programming, many people do not.
If you have your eyes set on Realm Crafter, then you can try asking here -
http://www.realmcrafter.com/private/index.php - , because TGC resell RC and as a result that means there is not an extensive community of users for it here.
