if I had the money and the band, I'd buy it, gig the crap out of it, then tell glorious stories about all the gigs it's seen then top it off with the real wowser of the story behind the origins.
*disclaimer* I am a (not very good) guitarist and know nothing about the price of basses. Please remember, the values of basses can go up as well as down, your home is at risk if you do not keep up the repayments. The bank reserves the right to charge you as much as it likes and assures you that your business is only important just as long as you keep the money coming in.