The Excel is discontinued as you may know, so if you replace it, it will have to be by something else.
You could sell the dead cartridge at a low price for rebuilding.
Alternatively you could have it rebuilt and continue to enjoy it. The cost would be less than a new one. I have had two cartridges rebuilt by Soundsmith in Peekskill NY and another done by Benz in Switzerland. In both cases the work was excellent, the cartridges sounded new and in one case, apparently better than new.