I take the 'Matrix' model of the future very seriously, in this respect:
If the seat of one's consciousness can be transferred from brain to cpu/memory seamlessly (this is crucial), people will take that option if/when it becomes available.
There are 2 ways to do this: internal replacement (Kurzweil) and external transfer. The former will be rather expensive and probably a long way off.
It's established by anthropologists that the seat of consciousness (whereabouts you actually sense your conscious, self-recognizing self is, is not fixed between the ears, or behind the eyes. Some have it the chest, as I recall, but that's unusual.
Transfer to servers will almost certainly involve some kind of s-f head gizmo that can
1. control a computer directly from the brain, and
2. bring sensory feedback from the machine directly to the relevant cortices (auditory, visual, etc.)
This established, the seat of consciousness will be free to move seamlessly to and from the meat between the ears and the cpu/memory. It will be necessary first to establish machine sensory inputs (via video, microphone, olfactory, tactile sensors), and outputs (manipulators) available to this seat of consciousness, otherwise it will refuse to move (we like to have familiar surroundings). If the sensory/motor factors are superior to those of the human body, it will move readily.
This accomplished, the attraction of having the potential for an unlimited lifetime will be certainly irresistible. Once transferred, civilization will probably eventually settle for an entirely internalized reality: a virtual Matrix-like existence. What's the point of an external reality if an internal one will provide a much richer and flexible experience (and see following paragraph)? This is, in fact what we do when we read a good novel, then switch to T.V., and then surf the internet.
The downside is that this option will probably be made available only to a select few million, chosen, elite. For security the integrity (permanence) of the thing will be much better, if we leave Earth altogether for a safe, but boring environment, such as deep below the crust of a geologically inactive outer planet(oid), such as Pluto.
The downside of this (potential) personal near-immortality is that people will stop doing science. They won't care about the properties of real matter, space and time, except for a few thousand personalities that will monitor the solar system for existential threats, and make decisions about repair and renovation, relocation and the like.
Then again, most people don't care about science/reality anyway. As stated above, a lot of time is spent in a fantasy world.