The boat we bought from a broker not a million miles from Wigram's Locks had been on their books for 2 and a half years, we never found out why. I knew this from adverts in back issues of boating magazines.
Inside it was immaculate but the outside had been let go. We spent about 9 months looking for a boat, this was 2009 however. For some inexplicable reason we kept coming back to this boat and eventually bought her.
The fact that the boat had been on the books for this time enabled us to strike a good deal. We had her stripped back to bare metal and a total repaint, dumping the previous name as it meant nothing to us.
I am aware the market has changed now.
We had a survey and basically the boat was sound, as is said "the rest is history."
We had enough put to one side to lavish on the boat post purchase.
If it is what you want, go for it, as always with the proviso "Caveat emptor."