Hmm you wouldn't have to sacrifice the look much however posting photos is way easier on xenforo and the multimedia options are a lot slicker.
Just being around a number of other forums I was quite shocked Vbulletin was even still used.
I won't use this forum enough to really be bothered either way but I was just thinking about new members and the future really. The forum is an ok resource however members wish to have it and I hope it continues, just Vbulletin is weird is all. I've had to relearn the old ways then realised I couldn't be doing with uploading media