Would be willing to be forever young?

[AMFV]

another interesting response. That last one also in theory also depends on pure eternal youth, as with full immortality he could blow most of the relevant bummers off

Well if you're living without any expenses, like eating or good living environments anyway why do you need money?

Beyond what AMFV said, you'd have to be on top of that money to ensure that your interest is actually above inflation rate for that currency. And keep an eye out to bail out if the currency starts to fail. Even in the short term, currencies and banks are not that stable. They are if you aren't planning to live much more than a century, but for an immortal, it would be a full time job to keep the money going.

Grey Wolf

And a job that would be constantly (to a perspective of an immortal) changing, banks are very different than they were before, tax law has changed drastically, inheritance laws have drastically changed, it would be a serious headache to keep track.

You could occasionally take it out of the bank and put most of it into a different bank, after converting the remainder to a non-perishable commodity

Which is good when that commodity doesn't collapse in value, which over a long enough time-scale many of them would. And provided you have the ability to liquidate those items without questions being asked.