Convention question

[willywonka666]

I've only attended one convention I suppose and it was a cool experience, and there's an awesome one coming to Knoxville, but I'm limited on funds

fanboyexpo.com/

I've noticed not everyone has a price for autographs-one in particular I REALLY want to get a picture with is Cerina Vincent(Yellow Power Ranger, Stuck in the Middle)-does that not necessarily mean a high price?

Someone else I'd love to meet, Tony Dow & Jerry Mathers, autographs are stated as being $40-are selfies a separate thing usually? I know all conventions are different, but I'm looking for a pretty good rule of thumb, and what else I might be able to expect there.

Thanks!

[I'm Team Bayley and Indi]

I met her at a London convention last year where she was £15, so I can't imagine she will be too expensive