My FSIL has generously offered to buy us a ketubah as a wedding gift. She told us to just pick one we like. I know nothing about them, and as I'm looking online, I'm seeing that they run anywhere from $80 to $500. Obviously we're not going to pick the most expensive one...should we just make sure we pick one closer to the lower end? Or should I ask FMIL what they "usually" cost? Or ask google?