Just the game values alone is 150$
Look it up.
And yes offer is already at 150$ so why would I take 50$ less?
You are misinterpreting "value" and "worth".
Here's an example: Mortal Kombat GEN is listed as "worth" $6.38 on pricecharting for the loose cart. But you can't find a single copy that's actually been sold recently. In fact, you can find copies that aren't selling for $1:
https://www.ebay.com/i/253276313381?rt=nc&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D20160908110712%26meid%3D9a04ea782dbd466cbdbbcdd8f01953a0%26pid%3D100677%26rk%3D9%26rkt%3D30%26sd%3D123143318477%26itm%3D253276313381So that $6.38 price doesn't mean anything because you can't realistically realize that value. And it has zero trade value because there are very very very few people who:
A. HAVE a Genesis
B. WANT MK1
C. Don't already own it
D. Want a loose copy instead of buying a CIB copy for a couple of dollars more
E. Select you to buy it from instead of all of the other people who are offering it for less
Make no mistake, I'm not trying to haggle with you. I have no interest in this lot as all but one game would be redundant in my collection and virtually all of it is worthless from a trade/sale perspective. I'm giving you some perspective and letting you know that if you actually have an offer for $150 for the lot, you should be running to take it.