Now museums are green but I'll have to pay $500 for a new phone every two or three years plus cellular data (Seems to average $70/mo for unlimited data in US?)

Now museums are green but I'll have to pay $500 for a new phone every two or three years plus cellular data (Seems to average $70/mo for unlimited data in US?) and these costs pay for cellular stations and electricity and electronics that become garbage after just a few years. Is that really greener?