With alphanumerics you have to find, or give them, meaning. There's nothing that pops out about "9X" to me, in relevance to VR. I know "9D" is a thing, but I'm not sure how to equate that with "9X".
I've invested in a lot of alphanumeric VR names myself, and I know that the good ones are growing scarcer, and scarcer, every day. Perhaps, if you hold, it might gain some intrinsic value that way? When there's nothing left?
If you get an inquiry, you might be able to negotiate in the $xxxx range.
At the moment though, I can't really put a value on it. Since there's no obvious meaning to me.