I don't begrudge the Archer era its gimmicks. These were kind of the done thing, and they were part of what made the toylines work as well as they did. And part of me does sometimes miss a toy feeling like a "proper" toy.
I didn't agree with a lot of the choices of gimmicks and also didn't mind seeing them slowly get priced out of production. Sound boxes, lights, spring-loaded head reveals. But they were there for a reason beyond frustrating people who'd aged out of that target audience.
That said, so many of the issues with gimmicks of that era seem like they could've been solved with a locking notch or ehatever that meant you could take your finger off the Mechtech or PRID weapon. Temporarily, at least, until the plastic would wear down. But the PCC limbs didn't need automorph; that was a gimmick on top of the combining gimmick and the budget could've gone elsewhere.
I've mostly kept all these in storage (along with 98% of my stuff), so they're all Schrodinger's Broken Toy right now. What are all the breakage issues and how inevitable are they? I've never combined these after the first couple of times (most I acquired without their drones).