Can someone please explain the point of an 8 string to me?
Extended range, and increased resonance due to a larger neck.
I for one, would buy the Ibanez RG2228 in a heartbeat if I had the money for it, since the extended tonal range, and subsequently expanded chording possibilities are intriguing to me. Plus, that thing sustains and sings like a motherfucker, even with EMG pickups.
But the point, may be a bit difficult to grasp at first. It's basically a 7-string on steroids, and if you don't want, need or simply can't handle a 7-string, then there is no point in an 8-string guitar for
you. As for me, I've already taken the plunge years ago, and I want so, SO bad!
If you see one in a store, try it out. It's really quite easy to play, after you've taken the first 5-10 minutes to get used to the wider fretboard.