They're a mid-weight wheel, known for their strength more than weight. Not the most expensive wheels, but not cheap, either. (hint: If it's hard to find pricing for it, it's probably expensive.)

Seriously, unless you're looking to go RACING on a track regularly (vs street driving and occasional autox), or are just in love with the Minilite styling, there are other options that would be lighter and cheaper.

Kosei K1-TS comes to mind.