Other factors on servicing:
Most LBS around my way have a long waiting list and awkward opening hours. E.g. we can fit you in in 4 weeks time. You can drop you bike off after 9:30am and you’ll have to pick it up by 5:30pm.
Sometimes you can’t talk directly to the mechanic directly so things don’t get done as you like (e.g. fork steerer cut down further than asked).
I either go to a friendly market stall or a bike hub who do nothing but repairs/servicing. They can usually find some time for emergency work when necessary, are more flexible with early morning/lunchtime drop-offs/pickups and I’m speaking directly to the mechanic.
Of course, your shop may already bend over backwards to help people out at short notice and work unsociable hours just for the convenience for your customers.