I love to use professional-grade items where i can, but sometimes "overkill" means a worse product. like the professional-grade fan - it's not just designed for a high duty cycle, it's also probably designed to be operated in an environment where people regularly use hearing protection, so quiet operation is not a consideration.
Dishwashers are another example. You could buy a commercial one but it will come with no roll-out trays (you load up different plastic racks for different things and you can load a rack while the dishwasher is running) and it’s designed for an environment with lots of ventilation (you just open it when it is done and let the steam get ventilated away) which people are unlikely to have in their own kitchens. Other ite…
The reason those big £3000+ machines are impractical for the home is not the cleaning or even the warm-up time (as both of those factors are the same for any espresso machine even the home ones) but rather with the fact that the bar grade espresso machines expect to be plumbed into a reverse osmosis filter and take up a shitload of space.
Commercial machines may need a little bit more time to warm up but I still let my gaggia warm up for around 15 minutes before I use it otherwise I find consistency falls and I just get frustration.
Regarding cleaning, the process is the same for home machines and just needs to be performed less often (I do this around once every week depending on use. I pour 1-4 shots a day every day). There are powdered detergents which are used to backflush the group head and solenoid valve to clear out coffee oils, this process takes about 5 minutes to perform and doesn't require much manual effort except for clearing out the drip tray and wiping things down a bit.
When it comes to cleaning the boiler, this isn't done by disassembling the machine or anything crazy like that. An acidic solution of usually some combination of primarily citric acid and/or potassium bitartrate is added to the water reservoir, the boiler is then flushed to get the solution in the boiler, I will then usually leave it in for 15 minutes with the boiler turned off to prevent water from boiling (to make sure all areas of the boiler are in contact with water at all times). Then this gets flushed with clean filtered water to get rid of the acid.
This process takes longer but also doesn't require much work.
Anything under £600 will give you mediocre espresso (due to grind inconsistency and temperature stability problems) or fauxpresso (any pod machine or bean to cup machine basically maxes fauxpresso, there are very expensive commercial grade true-espresso bean to cup machines but these, even when dialled in correctly, still usually make a mediocre espresso).
Any machine (even the fauxpresso ones) will likely require almost as much cleaning effort. Any manufacturer which claims otherwise (especially for bean-to-cup machines) is just trying to reduce the lifetime of your machine so it fails out of warranty and you buy another one.