I like that they were free. Found an old box with 30+ old metal guardians, half a dozen jetbikes, some swooping hawks, fire dragons, a couple of wraithlords and a war walker, among other things. I'd thought they looked neat back in the day when the aspect warrior article appeared in WD, but never had much of an interest in building an army. Now, 20 odd years on I'm really enjoying working with the lead again and converting or scratch building bits that are missing.
The 'Oh it's an Autarch' excuse covers a myriad of sins.