They are pretty much non existent at this point. Especially at 100 bucks even the worst condition ones were selling for 400
Andrew James kinda owns the market on these. He has several sets brand new. I think when they were discontinued he bought out dealerships stock and now he can set his own prices. I asked him how much he wanted for a set 900 was his price.
I do have a suggestion, go to Lloyds Mats and order a set tailored to the Ion. I got a set and I really like them. You can add things like a "Saturn" logo applique, premium binding, even the level of comfort in the carpet. They also fit perfectly and make use of the hook on the drivers side
I paid about 264.00 for these custom ones but if that doesn't suit you I do know the Cobalt floor mats are very plentiful and you can snag a set of black ones on eBay for about 100 bucks. They fit in our cars perfectly too. I was using them before I got these