It's listed as "like new": "Season Two still sealed".
(I don't look for these things, eBay just drops a line in my inbox)
http://www.ebay.com/itm/Banacek-The-Complete-Series-DVD-2008-5-Disc-Se t-/261533300178?ssPageName=ADME:B:SS:US:1123
As always, my Trunk Monkey can beat up your Trunk Monkey.
Your point is?
Anyway, factors to consider;
1) The eBay Seller may be very honest with their description. It is possible to have a DVD (Book, CD) still sealed in the original packaging, but not looking 'new', i.e. slightly shop soiled. Tatty cellophane packaging etc.
2) Since the North American Region 1, NTSC format DVDs are out of print, therefor, rare, th seller is entitled to place a price or value which they consider the title to be worth, taking into account what the market will pay. Basic supply and demand economics.
3) If you don't agree with the asking price, a loaded gun is not being held at your head to make you purchase. With eBay you can save a search with parameters built in and chance your luck, or you can look around elsewhere.
4) If your DVD playback and TV/Monitor equipment can handle it, you can go to Amazon in the U.K. www.amazon.co.uk and purchase box sets for both seasons for GBP20.00 (less 20% VAT if outside UK and Europe). These DVDs are Region 2 and PAL format and your DVD player needs to be multi-region and be able to handle PAL format to view them.
5) I have just purchased both seasons and they are excellent transfers given their age is 42 years. As the series were produced by Universal Studios, rather than a TV network, high quality production values are evident, and all episodes are intact including the pilot. Both box sets come with a booklet containg episode information, and for the first season, six pages oof viewing notes. I believe that the original Region 1 Season 1 box set release did not conatin the pilot, but was added as an "extra"in the Season 2 boxset.