Domestic appliances really have gotten dramatically cheaper relative to earning power, pretty much everywhere. Have a look at some old prices and compare to median wages; it's really fairly dramatic for most stuff.
As for the cost in 1950, I have no idea except what my grandmother told me - but the 7,000kr average annual pay I looked up at the bureau of statistics.
My paternal grandmother, though, upon hearing my maternal grandmother had a freezer already in 1950, was green with envy - they had not got one until the end of that decade.
I guess being an early adopter came at a price back then, too.
Interestingly, I found another couple of historical prices on consumer electronics:
A 21" black-and-white TV set in 1960: NOK 2,200 (two months' gross wages)
Tandberg 1/4" reel-to-reel tape deck (Also 1960): NOK 880 (Just shy of a month's wages)
'Cheap' 26" colour TV, 1993: Three weeks' wages
VHS recorder, also 1993: Another three weeks' wages.
Sony Walkman, also 1993: A week and a half of wages.
It is ridiculous how prices have come down in later decades.
[0] https://forskning.no/forbruk-hus-og-hjem-moderne-historie/dy...
2000 Norwegian kr (NOK) = 198 USD
2000 Swedish kr (SEK) = 191 USD
2000 Danish kr (DKK) = 296 USD
2000 Icelandic kr (ISK) = 15 USD
Are you sure you had to work 5 months for a freezer at median work in 1950? Seems nobody would buy them then.