Pack n play or crib?

Ive seen other moms use a pack n play instead of buying a expensive crib and i read online lots of moms saying they got the pack n play instead of wasting money on a crib since he will grow out of it and get into a toddler bed soon and the pack n play you can take anywhere. I already told my grandma to get me this nice pack n play since she offered, i was just wondering :) ftm! Thankyou in advance