Yesterdays Technology* Tomorrow! (*insert "Innovation", "process" etc as needed).
Maybe more on the equipment support side, when you look at the timeline between selection and implementation and realize that even if you get something cutting edge, it will be nearly obsolete when it's fully rolled out.
More recently, re: supportability plan; 'Maintaining via cannibalization'.
Had enough shock value that it really hammered the point home, but will steal that one and use it again.
'Soup Sandwich' is probably my favourite insulting descriptor that is still acceptable, with 'bag of hammers' being a close second.