I think for most casual usage there's no real advantage to the Fluke unless it has features you can't get in a "generic" meter.

Any more I think they're like calculators, no one cares about the guts because the all give you the same answer. So unless you need all the graphing and advanced scientific functions of something fancier, there's no reason to spend more.

Flukes are nice but I don't see the justification for something I use once a month at most. If I made my living off of it then I'd own one. If the difference in price was small I'd go for it, but for the money you can replace the cheap one many times.

I'd rather have a decent oscilicope and a cheap multi-meter. For automotive diagnostics any more they're much more helpful, almost as good as a decent diagnostic scanner.