The phrase "to become costly" means to increase in price or to become more expensive.
Sentences with «to become costly»
As an investor with a limited amount of money to invest, buying enough individual shares of different companies to fully diversify can become costly in a hurry. (investmentzen.com)
Today our living standards have become a costly affair with the price rise and the list of necessities of life has also extended largely with insurance becoming one of the top most priorities. (policybazaar.com)
This system is not a pack as you have to buy each product separately which becomes costly as it costs around $ 160 USD. (acnesupplementscritic.com)