Nice! You reminded me that I still need to add Virtual On to my DC collection (the 'HD remaster' on the 360 is the only version I currently have - and that's a digital copy).
Aways nice to see Guilty Gear X getting some love, it's my favourite non Capcom/non SNK 2d fighter on the system, and probably my favourite installment in the GG franchise... it's also ridiculously inexpensive (well, the NTSC-J version is... but I tend to only buy Japanese DC releases anyway).