Snacking with the big boys

So, first it was Pringles.  Then I graduated to 'handmade' crisps.  Now it's cheese straws. Seems like I'm snacking with the big boys. I first saw them being eaten by a colleague at work. I then bought some from the Co-Op one Sunday morning having popped out to get my Observer.  Then we taste-tested packets of different cheese-straws from Sainsbury, Tesco, Asda and Marks & Spencer.  My wife bought a truckload of the delightful things over Christmas and my will-power when confronted by an open packet fell to zero - if I'm drinking wine.  Or milk come to that.  They surely must be loaded with monosodium glutamate or some other food additive that makes them so addictive.  How else can you explain my greed?