For me,
My shop was running on:
1 Creality CR10s PRO V2 (10,000 h)
1 Creality CR6SE (4,000 h)
1 Elegoo Neptune 3 Plus (6,000 h)
All of them have been absolute workhorses and my upgrades have been primarily quality of life type things -- community firmware on the Creality's, silicone risers across the board; MicroSwiss hotends for the Creality's, and WhamBam PEX plates across the board. I've replaced part cooling fans here and there on the Creality's as well as the CR6 motherboard and the heated bed on the CR10s PRO. Aside from that, there's been very little maintenance required.
The Bambu has been head and shoulders above all of these printers, and I primarily think that is due to obvious technology advancements, but also the rich development of the Bambu ecosystem. The monitoring built into the machine is amazing, and as I had mentioned elsewhere, their online documentation is very robust, clear, and extremely helpful.
I haven't spent much time looking at the Creality CoreXY printers. When I started into 3D printing 6 - 7 years ago, CoreXY was not nearly as mainstream nor as developed as it is today.
I would think that a smaller Bambu coreXY printer (X or P) with an AMS would give you a good deal of flexibility and growth. When I was looking to get a Bambu I needed the buildplate XY of the H series and was trying to decide between the H2S and the H2D. Honestly, Bambu's black friday sale pushed me to the H2D and I'm glad I made that jump.
In today's world, I think someone can get a great deal of value out of the CoreXY and AMS combo. Two Nozzles and a robust ecosystem are icing on the cake.
There's always a concern about vendor lock, and Bambu has been following in the footsteps of Apple and Tesla to some extent. I initially shied away from Bambu in the early days due to the logical criticism that if they go under, you have a machine that can't be fixed. I think now with their growth, and development, the chances of them ceasing to exist diminishes with each passing day. It is hard to deny that their ecosystem is well developed and fairly strong.
Ray