Lexmart printer, lack of black in package

My friends i went shopping for a printer and got one very cheap at Walmart, i got a Lexmark Z2300 and i got home i was prepared to hook it up and for my surprise there was 2 slots for the in-jet in and only one cartridge in the package the #15 colour ,and with small letters in the box
(black Printing speed requires the purchase of black ink) so the printer,(not the all in one but just printer) if i keep it and buy the black will cost me a total of printer 2500 and if i buy the black more 24.00 bucks so will be 49.00 US dollars isn't this a rip off because the printer it sell is very week material, made in china as usual. i will return it tomorrow.what you guys think?