This guy making an auction with 80 NES games.

I've been looking forward to collect some NES games for a while. I've found this local auction of a guy making an auction with 80 NES games. It's currently at $30. How much would it be worth to fight it for these...?

• mickey mouse
• tetris 2
• mlb
• the adventures of bayou billy
• top player tennis
• skykid
• ghosbusters 2
• time lord
• mach rider
• gotcha
• ice hockey
• marble madness
• indiana jones temple of doom
• amagon
• shadow the ninja
• short order
• city conection
• top secret golgo 13
• comando
• football
• bionic comand
• ghostbusters
• champion series little baseball
• spot
• madmax
• tetris
• iron tank
• renegade
• track and field
• silent service
• stealth
• dash galaxy alien asylum
• mechanised atack
• clash at demon head
• fester
• hudson hawk
• flying dragon
• pinball quest
• double drible
• bugs bunny birthday blowout
• low g man
• total recall
• american gladiators
• capcom gold medal challenge
• t y c surf designes
• shingen the ruler
• super spike v ball
• gauntled 2
• breakthru
• r.b.i baseball 2
• dick tracy
• alien sindrome
• the hunt for the red october
• q bert
• mario bros /duck hunt
• paper boy
• soccer
• archi rivals basquetball
• barbie
• islan 2
• super spike v ball/ world cup
• tecmo bowl
• rolling thunder
• crusty fun house
• karate kid
• lunar pool
• spy vs spy
• rush and attack
• robocop 2
• operacion wolf
• bad dudes
• kage
• gun smoke
• caveman games
• doctor mario
• ninga gaiden
• burger time
• maniac mansion
• galaga
• karate champ
• magmax
• metal gear snakes revenge
• robocop
• metal mech

Each one apparently was tested, good conditions, no cutten ettiquetes, no box, no manuals and each one comes on a plastic bag.

Up to what quantity would it be worth to get this?

[edit] Apparently the guy won't make shippings, since it's a big package. I'd need to travel to the capital.

[edit-o-the edit] The auction went up to $74! There's no way I'm paying that.