I'm older and I also still like carbs. I'd prefer a carb over the (primitive) EFI our Mean Streaks have. Even with a PCIII it's limitations are frustrating. On the other hand, my BMW has a very smart Bosch BMSK (ECU) that's been reflashed. It runs better than any carb setup could.
I have the old serial port PCIII on my Mean Streak. I've been tempted to get the newer USB version that has the accelerator pump function. It could improve "tip in" with lean cruise mixtures but as you've found, it runs "good enough" so I haven't.
First gen, crappy OEM EFI lead me to convert my 1994 mustang to a carburetor. the '87-'93 "Fox body" mustangs had the same 5.0 engines and were (under-rated) at 225HP.....but were closer to 250. the next gen gained about 500lbs. a shallow hood line, which meant a very restrictive intake, and a bunch of emissions controls, and were rated at 215hp!!!
Can you imagine the absolute crap storm if new Vette or Stang came out with LESS hp then the current model? That was the 90's
Anyway, Ford switched to the 4.6, OHC modular motors, which are super expensive, and less durable, BUT have a far superior EFI system. I was faced with a custom stand alone EFI system, a custom tune, or adding a cam position sensor and other sensors, and trying to retrofit a factory EFI system. Instead i swapped the intake, ran fuel lines, a fuel press reg, and slapped a carb on it. Best decision i ever made! Long story short, the meanie EFI is kinda lame, and i am not impressed with the modules, so I plan to just leave it alone and enjoy driving.
In my experience the major advantage of EFI is MPG and easier tuning abilities. Carbs are easy to tune ONCE you know what you are doing, but the learning curve is steep, and it's becoming a lost art. New efi tuners can be adjusted from your phone. I am not interested in spending $300 on a module to improve my MPG by +3.....that would take a lot of fill ups to offset.