latency and control, and reliability of bandwidth and associated costs - however this isn't just the pull for specialised hardware but for local computing in general, specialised hardware is just the most extreme form of it

there are tasks that inherently benefit from being centralised away, like say coordination of peers across a large area - and there are tasks that strongly benefit from being as close to the user as possible, like low latency tasks and privacy/control-centred tasks

simultaneously, there's an overlapping pull to either side caused by the monetary interests of corporations vs users - corporations want as much as possible under their control, esp. when it's monetisable information but most things are at volume, and users want to be the sole controller of products esp. when they pay for them

we had dumb terminals already being pushed in the 1960s, the "cloud", "edge computing" and all forms of consolidation vs segregation periods across the industry, it's not going to stop because there's money to be made from the inherent advantages of those models and even the industry leaders cannot prevent these advantages from getting exploited by specialist incumbents

once leaders consolidates, inevitably they seek to maximise profit and in doing so they lower the barrier for new alternatives

ultimately I think the market will never stop demanding just having your own *** computer under your control and hopefully own it, and only the removal of this option will stop this demand; while businesses will never stop trying to control your computing, and providing real advantages in exchange for that, only to enter cycles of pushing for growing profitability to the point average users keep going back and forth