Your one example of how tanks are still worth their cost; the 1st gulf war IMO does in no way contradict my agument. Abrams and co may certainly have won thier 'strips' as you say but that was a battle of young dinosaur versus
old dinosaur.. same goes for gulf war 2 (The empire strikes back

less the occupation)
However suppose 1 side in a conflict decides not to invest in hugely expensive tanks and instead invests in a wealth of individually very cheap anti tank missiles and disperses them thoughout their territory in the hands of professional or even part time militia. It is a simple matter for these anti tank 'snipers' to conceal themselves until the noisy and cumbersome tank rolls into his sights.... War is as much a matter of economics and logistics as it is of firepower. How can the tank's military value be defended when its multimillion cost and high maintenance bulk is easily defeated by a £1000 low maintenance shoulder mounted anti tank missile?
Haven't you noticed that although Russia's weapons industry is dramatically improving from its post soviet slump producing new better cutting edge military hardware of all descriptions they are not making a single new tank!
The russians know which way the wind is blowing.
This is modern warfare now not back in 2000. Hezbollah's defeat of Isreal is a clear example of the direction of war in the future.
Perhaps you are an american so you have been told by your pro isreali press
that somehow despite being forced to withdraw and accept a ceasefire Isreal won.
I refer you to some refreshingly non zionist views of the zionist media and this last conflict in lebanon...
http://www.iiop.org/index3.php?recordID=173
http://www.mosnews.com/news/2006/08/16/hizbullahchechens_.shtml
http://news.independent.co.uk/world/fisk/article1219260.ece
http://www.scoop.co.nz/stories/HL0608/S00125.htm