Conf,
You're missing the point.
He might have £150k to buy an aircraft, and fund 10 years worth of flying.
If he spends the £150k on the aircraft, he has nothing left over to pay ongoing costs, no matter how small they are.
Insurance, parking are significant costs, and won't be any cheaper for a Diamond Star.
Not much point in having a beautiful aircraft, if you can't afford to fly it, never mind having to sell it to pay for the insurance/parking outstanding.
We'd all love a nice new aircraft, but needless to say, we can't all afford one.
dp.
ps. Did you get my message? You missed a lovely evenings flight