If they have datalink, they can still be versatile interceptor platforms when combined with AWAC and the C4I network, but other than that, they are very good DACT or aggressor training platforms, I'd keep them going just for that.
Never the most capable jet, but for a long time gave us numbers and in the 2002 confrontation kept IAF at bay. Played no part in Feb 27th but I will miss this plane. For me it epitomised everything about PAF, making the best of limited resources. Do not forget these men and these machines, they flew up knowing they may face SU-30s and Mirage 2000s. Salute them.