had a couple of highish milers when I was doing 100-110 miles a day..

mk3 Mondeo TDCI, bought it with ~157k on the clock for 1k with no history, put another 18k on it, sold it for £800, all i had to do to it was a wheel bearing and set of rear discs and pads, a boost hose and a EGR blanking plate, total cost of ownership including a set of boots and servicing every 6k, ~£600 over 18 months

Bought a D4-D Toyota Avensis, bought it on ~148k with no history and put a further 25k on it - and it was bulletproof, In the 2 years I had it, it needed servicing, brake discs and 6 tyres in total. Total cost of ownership was about £700, including the £300 loss over the purchase price and £400 in repairs..

1.8 Diesel Fiesta (non-turbo), boy this was slowwwww. paid £475 for it, added 20k in miles to it, sold it for £450 and only had to repair a lower wishbone, doorlock and fit tyres/service it. really cheap and dull motoring though.

Id say get a high miler if your putting on the miles, yes you will have some repair costs, but these engines are designed to take 200k+ with basic maintenance, history was never important to me as I was buying at the budget end of the market, knew the first thing id do after getting it home is go through it mechanically to see what was wrong and give a full service..

Probably saved myself thousands with this attitude in buying throwaway cars and selling them at a point I thought major repairs were likely in a further 5-10k..