For instance, one person writes on Quora[0] that between 1600 and 1800 one could cross the Atlantic from Europe by becoming an indentured servant, working 4-7 years for someone. By looking at the average US income, this corresponds to roughly $2-300,000 per one-way "ticket".
This is somewhat comparable to Musk's aspirational price for a one-way ticket to Mars, no?
On another note, I'm sure there were discussions back then about why bother to spend months crossing the Atlantic..!
[0] https://www.quora.com/How-much-did-it-cost-in-today%E2%80%99...