MRR cost 25 cents in the mid-50s when I started buying it at the local hardware store (which also sold model railroad stuff). That's $5 in today's money. No change, IOW.
I wish people would stop whingeing about prices. Seems like everybody wants today's wages and decades-old prices. Just about everything is cheaper in _real_ money nowadays. Eg, gas was around 30 cents an imperial gallon in the late 50s. That's around $6 in today's money, or about $1.50 a litre - quite a bit more than the 95 cents or so we're currently paying in Ontario. (A US gallon should be $4 to $5US to match inflation-adjusted 1950s gas prices.) (Footnote on inflation calculation below.)
Or look at it in terms of how long you have to work to earn what you want. You'll find that most things cost way less in earning time than they did 20, 30, 40, 50 years ago. Eg, in 1956 I worked a week at 1-1/2 times minimum wage to buy my first pair of dress shoes. A pair of dress shoes now costs about 8 hours at 1-1/2 times (Ontario's) minimum wage, or one day. A cheap TV set cost me about 7-1/2 weeks at my then wage rate. Today it would cost two to three weeks - and that's a colour set, too.
The good old days never were - it's just the pink haze of nostalgia fooling your memory.
Footnote: I'm using the maximum salary of a Canadian high school teacher as my base, even though teachers' salaries have _not_ kept pace with inflation. Mid 50s. the max. salary was around $3000-3500 Can. Today it's around $60,000 - $70,000, which yields an inflation-multiplier of
- That's a "conservative" muliplier, ie, too low, but IMO is good enough for an estimate. It also reveals the reality that real prices for different goods and service have inflated at different rates.