"So, a laptop with a fingerprint scanner is less secure than one with just a password. The attacher can choose which method to attack, there is no protection from a poor password AND there is the opportunity to try a gummy finger cast or other false fingerprint method."
1. Less secure - I don't think so. The typed password should be a back-up, only used in the event of a hardware failure. As it's a backup then usability constraints can be dumped in favour of security: a 30-character random string which you keep on a bit of paper in a locked drawer (or under your mattress if you like). Hopefully you'll never have to use it for the life of the laptop. String length and complexity of backup should IMO be mandatory (again, usability is secondary), to stop the password morons doing their usual thing. Financial losses by password morons hit everyone - you don't think the banks just suck up the loss, do you?
2. Gummy finger casts don't work with the new vein scanners, thankfully, leaving bolt-cutters as the only realistic alternative for a crook. This is still better than a Minority Report or Demolition Man style eye removal.