For whatever it's worth, I don't have any urge to have any bass guitars beyond the absurd number I already have. One or two might get modified if I want anything different. I'm pretty sure the 1991 will get Thunderbuckers one of these days.
The two I have now are definite keepers. The NR41 is possibly the nicest bass I have ever touched, let alone played. The Orville was a revelation -- there's an order of magnitude difference between it and the Epi Reverse.