They are all fake. I was duped with one. I bought Nexus2 and allegedly "all expansions" but ended up getting a DVD with the ancient AiR Nexus2 2.2.1 on it... for PC only. No one is selling an actual copy of Nexus2 on there. If you were, someone would come and take it down because ReFX looks into these things. I believe they have also sued people for it. Many people have lost upwards of $4,000 for it simply for trying to sell pirared copies of it on eBay. ReFX does not mess around with their products. They are highly protective. The amount of time people spend trying to get it cheaper or trying to find a crack for it, can be spent saving up money for it. If you don't need it bad enough to wanna pay for it, then I'm sorry to say you don't need it at all. Make music with what you have. There is so much to make music with on the sister site that I'm pretty sure people can live without Nexus2. It's not for everyone anyways. Serum, spire, zebra, Omnisphere2... Omnisphere2 is badass.

 

I am currently thinking about buying nexus, too. Yesterday I was looking in ebay and I've seen these outrageous offers. Really very brazen! From time to time you can see good deals again when someone sells nexus with many expansions in a bundle. Look at kvr forum. I've already thought about it to save a few dollars, but somehow I'm concerned about buying nexus at ebay. A better deal for example on ebay-kleinanzeigen.de (german selling portal) someone is selling his nexus with all expansions till 2015 for 1250€. I'm waiting for Christmas. As far as I know, there is then again a discount of 50% and then I will decide.

 

By the way, I agree with all Impressive already has said. In the next time you won't get nexus for 20 dollars or less. Almost all the offers on ebay are the old cracked PC stuff which you can't use for newer expansions. Please give up searching for an updated cracked nexus version.