truth--none of those. Reasons relate to the seller.
otherwise if you are just asking as a hypothetical question:
--What title do you collect--buy that issue.
--If you are looking for rarity, the Marvel Super Action 2
--If you collect variants, buy the one you do not have
--If you are looking to start collecting variants, keep shopping there are better deals to be had
Keep in mind, if they were a decent price, they would have gone in one of the first ten times they were listed.
Twisty answered his own question before he posted it:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230299062903