Good morning,
Below are a couple of example from my area of bikes that I would buy for general use if I didn't already have something that does that. They are mainstream bike at prices that are in the realms of reasonable for "normal" people, by that I mean people who don't understand that £3k is entry level

 
This on 
ebay and ending today; 
https://www.ebay.co.uk/itm/185753656693 currently at £103 but under the reserve.   Disc brakes, CF fork and 20 miles covered!
	
		
			
		
		
	
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It is in the Birmingham area so a million or so customers within easy collection distance.
Edit: Bidding ended at £137 and is relisted as reserve not met.
Slightly more upmarket but a bit further south, 
https://www.ebay.co.uk/itm/225387375124 an unused (100 miles) 1 year old Specialized Allez E5 which didn't go at £450 and has been relisted at £350 with a make an offer button also ending today.
	
		
			
		
		
	
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In my mind the Carrera represents the market for entry level bikes well and the Allez slightly more upmarket well.  I get that £350 for a used bike with Claris might seem expensive, but it is unused, so it is about £400 off in exchange for no warranty.
Bye
Ian