Sorry Murphy's site is down for me so unable to post a proper link (and not 100% certain of the price (it may be $44.99/$64.99)) but if you like this booze (I love it but it's a liqueur as distinct from a spirit which is how they market it), it's not a bad price.
The 700ml is an "online only" price which I guess means paying upfront and stock is patchy (there's no stock in Sth Melb or Prahran in my area) but the 1lt can be had by walking in.
Have at it!
Thanks RichardL!