I know I sound like a broken record on this issue, but to me it's a combination of the size of the market and 'find another'.
In other words, it would be a bit easier to find similar examples of well cared for £2000-£3000 preludes with 80k - 90k perhaps, but to find another like yours would take a while.... In that respect, anyone that is in the market for a Prelude like yours will, IMHO, have had a lude or two before and will -know- what they are about, their 'worth' (as a car/performance vehicle, not a commodity) and how unusual a condition like yours is and would therefore be prepared to pay the money for it. Let's be honest, in today's climate of similar age/type vehicles we know it's totally worth £5k, you just need one of the (admittedly at this stage) small market of prospective buyers that agree to find it.
If it were a CRX, we wouldn't even be having this conversation, purely because the buyers market is bigger. The Prelude went a bit under the radar which has been both it's curse and in time I believe will be it's blessing - as people realise what they are and can do and what a relative bargain they are compared to civics/CRX/tegs blah blah they will start to come up more. All that time there are less and less on the road which will ultimately mean greater demand.
Look at the left-field jap cars that are in demand now just because people hadn't really heard of them so they went by the by - estates, saloons, you name it. As a result, no one else they know has one/knows what it is = 'cool' = value goes up.
It looks like a lovely car and I wish you the best of luck with the sale and that it goes to the right person.
