It would be really smart if it did the one thing it is supposed to do. That goes for any appliance. Internet connected, high definition, VR toaster? No thanks. $7 and puts out a good toast? Yes, please.
On top of this, there's no guarantee nowadays that if you pay more there's any more chance of getting a better quality product. It's just more money on advertising and shiny aesthetics usually.
I would pay double for a toaster that is guaranteed to work for 5 years. It must be possible, in the old days appliances lasted almost forever. It's just heated bread, for god's sake. I have gone through four microwaves in the last 5 years, and I only use the microwave probably every third day.