Should I buy it?

Have a co worker selling an NZXT pre built with a b550 board, 5800x, 32 gigs ddr4, 1tb ssd. Originally came with a 4070 had to RMA it and got sent back a brand new 5070ti. Asking $1500 for it l, good deal or no. Currently have a system with a 2600x and 1660 so I’ve been out of the hardware loop for awhile.