The Eheim 1262 should be compared to a Mag 9.5. Based on the spec and price, the Mag 9.5 is a clear winner.
Eheim 1262 is 900 gph at 80Watt and cost $187 on Marinedepot.
Mag 9.5 is 950 gph at 93Watt and cost $100 on Marinedepot.
If the Eheim were to produce 950 gph, it would consume ~84.4 Watt so that's less than 9 Watt difference between the two pumps.
Assuming electric rate is $0.10 per kilowatt hour and the pumps running 24/7, the electric cost difference is less than $8 per year. That means that it would take 10 years to recover the extra cost of the eheim pump.
Comparing other specs:
Eheim 1262 Max head = 11.5' vs Mag 9.5 max head = 14'
Eheim 1262 power cord = 7' vs Mag 9.5 power cord = 10'
I have a mag 12 as the return pump for my 75 and I cannot hear it. The drain line is much louder. There is also the noise from the skimmer the vortech pumps. The mag pump is under water, I doubt you would be able to hear it over all the other noise.