Just console, ignoring cost of accessories. All prices in AU
$400 Wii
$250 GC + 3 games (2nd hand)
Whatever the RRP of a Sega Mega Drive was
$20 Sega Master System + a box of games (2nd hand, was bought after I already owned a Snes and Mega Drive)
$8 SNES (1st hand, about 3-4 years before the release of the PS1)