Are you saying there is a proven market for luxury toasters?
While in general this is true I think "premium" grade home appliances generally top out around twice the cost of mid-range (I'm thinking vacuums, ovens, refrigerators etc where you compare similar capacity). This probably isn't a sufficient premium to cover the overheads.
Coffee machines are probably an exception here.
I'm not educated about the toaster market - are they more like microwaves or more like coffee machines?