You don't need to spend anywhere near that much:
https://www.amazon.co.uk/gp/product/B00PY6NGZQ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1This doesn't have a heated group head, so you do need to run a little hot water through before you make your coffee.
This doesn't have a dual boiler, but it does have a temperature switch, so all is good.
Basically if you want a decent coffee machine you need:
Espresso machine with group head and steam wand.
Two water temperatures. 77-80C for the coffee and 100C for the steam wand.
Decent pressure.
Preheated group head OR enough patience to know that you must do this manually.
A SUPPYL OF FILTERED WATER.
Ours is in an office of 20 people (well, engineers). It keeps up fine. It might struggle with a higher workload. I have an identical machine at home.
Spend the money on a decent burr grinder, don't be told that a blender style bladed chopper is a grinder. It isn't and it won't make good coffee either.