99.9% likely this is not in compliance with the licencing agreement. I came across a scenario like this where someone still employed by the company in question was farming out company licences to various takers on ebay (in this case XP Pro VLK) I will comment no further because IIRC he has a trial coming up.
Site licensed software usually doesn’t come on 300 installation disks – so you’re going to get a copy. It’s probably a copy of a corporate licensed version.
Next, these are available on the internet if you know where to look. Any old Joe could download and burn one.
Finally, corporate license keys are similarly available. You’re not likely to get a certificate of authenticity with the license, but just some printout that the same “some Joe” could make on his $79 printer.
So… I’m guessing he’s not violating any companies’ license agreements, but rather selling you pirated software.
Most site licenses require the software only be used on a single “site,” where a site is usually defined as a single building, single campus with multiple buildings, or less commonly, multiple buildings at multiple locations of a single company.
You don’t qualify for any of those, even if the seller had a legitimate site license (which, like Balthisar suggests, probably isn’t the case).
A neat trick that’s easy to exploit (and is completely legal) is to hike over to your local community college, sign up for a single class, and get a student ID. My local college charges $26 per unit, plus a $27 student services fee (which includes the ID), so for a grand total of $53 dollars, I get a year long (if you get the ID at the beginning of the year for winter classes) “discount card” for all my software purchases. And you don’t even have to buy the software at the college store. You can buy it at any place that sells academic versions of the software, including online stores.
$190 for Adobe Illustrator CS3 Academic version vs. $600 for the normal retail version is quite a discount. And yes, they are exactly the same version.
The problem with this is, the Academic license doesn’t allow use for commercial purposes. My wife thinks she could well use the program commercially. (Like for designing t-shirts and cards and things like that.)
But there’s no way we can do $600. So I was hoping to buy a used copy of an old version for cheap. That’s starting to look unlikely as well.
Then you’ll have to look for alternatives. CorelDraw can be had for fairly cheap and is nearly as good as AI. There are a few open source alternatives, but none of them are as easy to use. Wikipedia has a comparison table you can peruse for alternatives.
My wife would strongly prefer Illustrator. It is for that reason that we, each of us being albeit very near our thirtieth birthdays, have nevertheless decided to attempt to mooch off our parents. We’re going to ask for it for Christmas.
The problem with trying to buy used copies is upgrade licenses, and you seem like you’re trying to live by the letter of the agreements. When you purchase a discounted “upgrade” copy, there’s usually language that stipulates that you can’t give away or sell the previous copy, that the upgrade is, in fact, an “upgrade” and not a replacement. For example, I think that the upgrade version of Windows XP requires you to insert an earlier version of a Windows CD during the install, to confirm that you’re upgrading rather than replacing.
Sure, people sell off old versions all the time, but do you want to risk eternal hellfire that you’re violating their upgrade license agreement?
A cursory read of the Adobe EULAS at http://www.adobe.com/products/eulas/ says to me it’s illegal. In addition, the company purchased the site license. This guy is defrauding his employer by selling something he does not own; his employer has the license.
Some software companies offer competitive upgrades. That is if you own a competitor’s product, they will give you a deal to switch brands. The vendor will make you prove you really do own the competing brand (usually, all they require is a copy of the title page of the competitor’s user’s manual). I have realized discounts between $100-$200 in doing this.