買い得 (kaidoku) means “bargain” | MotiTan Japanese Dictionary

More examples

買い得だと思って、長く使える家具を選びました。ka i doku da to omo tte naga ku tsuka e ru ka gu o era bi ma shi ta

I thought it was a bargain, so I chose furniture that I could use for a long time.

Describes something whose value to the buyer is greater than its price.

掘り出し物horidashimono: A surprisingly valuable item sold at a price that makes it a good purchase.

値段に比べて価値が高く、買う側にとって得になること。ne dan ni kura be te ka chi ga taka ku ka u gawa ni to tte toku ni na ru ko to

買い得 (kaidoku) is formed from 買い (kai, "buying") and 得 (doku, "benefit"), linking the act of buying with an advantageous result.

The phrase 買い得 (kaidoku) suits a purchase that is worthwhile because its value exceeds what the price suggests, not simply because it costs little.