It’s about striking the right balance for your own circumstance. Having enough banked to always be able to meet your travel needs is the goal. Everything over that is of no use to you. Thinking 20 years ahead in this game is pointless, pardon the pun.
I would be looking at other ways you can get value of points and credit card spending now. Like albyd, I also transferred a lot of points to SPG last year to meet my accomodation needs for the next few years, when it was at a very favourable rate.
With a surplus of points, even options that provide less value are viable, as long as you get a greater benefit than the cost of obtaining the points and have no better use for them.
I would be looking at other ways you can get value of points and credit card spending now. Like albyd, I also transferred a lot of points to SPG last year to meet my accomodation needs for the next few years, when it was at a very favourable rate.
With a surplus of points, even options that provide less value are viable, as long as you get a greater benefit than the cost of obtaining the points and have no better use for them.