Actually, most people use a magnetic driven pump, with the same advantages that you listed, but maybe not the brand you have in mind.
Eheims are fairly popular, because they seem to be very reliable (impression? fact? prestige? Don't know...).
There are many other pumps available that will perform just as well (in theory) and sometimes even better.
It just comes down to "how you buy" something. Personally, I want to see the specs (performance chart), so I probably won't get an Eheim.
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