Pre-CBS Fenders are somewhat rare. They have historical/collector's value - to some people. I'm a musician, not a history buff or a collector. If someone dropped $33K on my head, my first thought would not be "I'll buy ONE bass". If I played, cello, that answer would likely be different, because there you need a lot of cash to get a good instrument, but here you're not paying for a better musical instrument. You're paying because it's "rare" (though common enough that a fair number of people understand what it is). It doesn't have intrinsic value other than the demand is higher than the supply -0 the value is only in the minds of the people that want them. Like the housing bubble, prices can go down. Unlike the housing bubble, since no-one needs a bass guitar (people do need housing), they can actually go down a lot faster. If the next generation isn't into old guitars, this is something that will fall in value over time.
If you can afford it and can afford to right that money), and collecting is your thing, go for it. If you're thinking it will make you sound better, I'd humbly suggest that $33K worth of lessons would do a whole lot more.