I'm on my mobile and I can't edit my post, so sorry for the double post:
From one GnG/Castlevania fan to another; if you pick the game up and don't feel you got your moneys worth, I will personally gift you a GOG of your choice (15 dollar and under). It's a risk, as I am banking on your honesty, but I think you will enjoy Volgarr as much as those games. :) Deal?
No :D I'm pretty sure I'll enjoy Volgarr A LOT, I love this kind of punishment, that's why I want more content - so my masochistic desires can be quenched for longer ;)
As Zauron noted, there's probably enough stuff to keep me happy:)
Also, if you're a Castlevania fan (or even if you're not), be sure to check Valdis Story: http://www.youtube.com/watch?v=MK0wkXNcuK4
It's next on my to buy list as soon as my budget allows it.
For GnG fans, there's Maldita Castilla which has commercial game quality but is Freeware: http://www.locomalito.com/maldita_castilla.php
Be sure to check it out if you don't know about it already (which I'm sure most GnG fans already do).