Vipers have dropped below $30k

So I was looking on Autotrader at 90's Vipers, I set my price limit at $30k, 13 Vipers came up across the nation. Some in the high 20's and even one in the mid 20's with under 30k miles... What do you guys think NPOCP? This is for cars from ~95-98 model year.

Can any of you speak to the reliability and/or cost of maintaining one of these?