Yea it is quite a lot that's why I'm surprised removing the cluster did drop it so much.Amp and an half seems like a LOT to me for something like the cluster, with no "visible" symptoms. WATTS= IE (current in A x V) that's nearly 20 watts!! That's enough to warm things up!!!
EG just for fun I looked up a 1004 dome lamp, they get hot as hell and are less than that.