If price were all that mattered, no-one would be driving BMWs (or VW T5s for that matter).
Vin
Bmw vs ford is different to a window cleaner named dave and another window cleaner called john who both charge totally different amounts but still both have the same end result which is clean windows for the customer.
I always buy a nice car as i work hard to be able to have 1 but if i wanted my lawn cut and got 2 different quotes and 1 was half the price of the other then i sure as hell wouldnt go for the most expensive quote for exactly the same job to be done id go for the cheapest as cutting a lawn/ cleaning windows etc etc isnt rocket science and nomatter what you pay any half decent window cleaner will do a good job if they want repeat custom,
When insurance hunting, do you shop around for a low premium like most or do you ring around and pull your hair out trying to find the most expencive quote??.
All assumes that the job required is
just clean windows.
Some want a call before a visit. Some want flexibility on timings. Some want their windows done every fortnight, some every four weeks, some every eight, some every twelve. Some want a CRB checked cleaner. Some want trad, some want WFP, some don't care. Some want someone who doesn't ever hassle them, some want someone who stops for a cup of tea and a chat. Some want to pay cash, some chequye, some by BACS, some by standing order. Some want the same face every week, some don't care. Some want a one man band, some want a company. Some want a guy in a recognisable van. Some want to know that the guy who comes has key insurance. Some want the frames done as well as the glass, some just want glass and don't care about frames.
And, yes, they all want clean windows. But amongst that lot are some requirements that will make someone pay more for the cleaner of their choice. So if they want their windows cleaned every fortnight and you only offer 6-weekly, price goes out of the window; you're not going to get the job even if you're cheaper. (That's an example, so don't get too fixated on the detail). If they want a trad guy and you're only WFP then you can halve your prices and not get the business.
Ref insurance, no, only a madman would look for the most expensive quote; that's a ridiculous straw man. However, last renewal, about a month ago, I took a premium hike for a replacement WFP van if I'm off the road. So, once again, it wasn't price.
Vin