Both interesting perspectives. Have either of you read the novel by Ian Fleming? I ask because Casino Royale was a reasonably faithful adaptation of the novel (the most faithful being From Russia With Love).
While Casino Royale is not what we've come to expect of the Bond series, this film was a reboot. It was 007 earning his stripes if you like. The inclusion of gadgets could have detracted from the intended grittiness (the defribulator not considered a gadget in the script BTW), and in terms of Bond films this isn't the first to not have them. Dr. No had no major ones to speak of (Q appears for about 20 seconds and gives Bond a gun, Bond also uses a Geiger counter), On Her Majesty's Secret Service offers up radioactive pocket lint of all things, and The Man with the Golden Gun features a plastic nipple.
On some of the other points - unused cars. In GoldenEye (the film that saved the series) Bond is given the BMW Z3 with rockets under the bonnet, ejector seat and so on. It's shipped from London to the Caribbean and... he drives it down a dirt track.
Bond is supposed to be clean cut and classy not tanned beach dude.
Fleming thought the same of Connery (well not beach dude, but that he was rough and inappropriate) and hated the suggestion of Sean Connery playing James Bond. He was apparently livid at the casting. But like everyone else, eventually warmed to him.
My major point is this, Casino Royale is no different to the first 5 Bond films, it scripts itself out without any particular formula. For this, it has a few detractors. At the end of the day, without a film like this there would be no more Bond series. As enjoyable as I found Die Another Day, they simply couldn't go on making them that grandious.