Why did we get rid of the A-6? Seems like they had alot of life left in them, though at their peak, I wasnt even born yet. Beautiful aircraft none the less.
Although MB is close with "money and politics", it was result of hue and cry for a Peace Dividend in aftermath of Desert Storm that started when Les Aspin was at the OSD helm circa 1992. The prevailing mood in Congress and OSD was that services were still resourced for a Cold War that would never happen so the Bottom Up Review started by Aspin in 1992 presumed US was only super power and there was no immediate threat so many, many programs were given the ax (F-14D, A-6F, AAAM, P-7, A-12, NATF....) and defense spending that was on upward slope reversed and plummeted. A problem for OSD and services was programming of funding works on a six year forecast yet Congress only allocates funding on an annual basis and every year post Desert Storm, the rug was literally pulled out from DoD's feet.
Meanwhile, there was a major effort in Naval Aviation to save on costs by reducing Type/Model/Series so by 1994, it came to a head and either the Tomcat or Intruder was going to have to depart the pattern. This was debated for months inside OPNAV and supporters of both got pretty heated up. At the time, the Tomcat had limited dumb bomb capability and the planned $1.6B Block 1 Strike upgrade also became a "bill payer" so for a time, it appeared the all weather precision strike capability (and tanking) of the Intruder might be more advantageous than the Aerial Prowess of the Tomcat with limited A/G capability. Rear Admiral Allen was the staunchest proponent of the Intruder (as a former B/N) and as OPNAV N81, had a seat at table debating which T/M/S stayed and which received early retirement. In Spring 1994, he relented, but only on condition that Tomcat get a precision strike capabilty ASAP. So the Intruder was retired and the Tomcat squadrons reduced to one per Air Wing and many Intruder aircrews absorbed into the Tomcat community.
Several months later, seeing no near future precision strike solution for the Tomcat, now VADM Allen was in the AIRLANT seat and he approved use of a fleet Tomcat to demonstrate a contractor funded LANTIRN demo that could be fielded in less than a year. Subsequently, after first demo in Spring of 95, Tomcats began receiving LANTIRN pods and after first deployment in 1996, all Tomcats deployed with LANTIRN transforming its role in the air wing for the last ten years of service (it would arguably have retired sooner without LANTIRN; some plans called for 1997 or others 2003).
So was there an underlying money issue. Of course, everything is tied to funding, period. Politics? Maybe not in traditional negative connotation. There was a lot of uncertainty in that timeframe and the military does serve a publicly elected political entity so politics are always at play as that is the process in which defense spending is approved. However, the decision to retire the Intruder was made by Naval flag officers debating the future of the Carrier Air Wing weighing available funding versus roles/missions and capabilities of the various aircraft. That pretty much goes on formally on an annual basis as part of the Pentagon budget process anyway.