Discount on cartridges vs. other equipment

Way, way back when I was first getting into this hobby, I recall that phono cartridges were routinely discounted at a far greater percentage than anything else. (I'm talking about the 1970s here.) Would it be reasonable to expect that this is in some ways still the same, at least for mainstream stuff?In other words, could one figure to get a Rega Exact at a greater discount (on a percentage basis) than, say, a Rega P5? And the same with an Elys and a P3, etc? I'm talking about when one is buying new from an authorized dealer, not used from someone who is changing up his system. Thanks for helping out on this. -- Howard