Originally Posted by
Sereisina
... but I am looking at February 2019 prices and BA is 5K and Qatar is 4K. A 1000 dollar difference to maintain elite status?
BA & QR are freq flyer partners. So have a look if a ticket on one will earn status on the other. Some times they do and sometimes not. Info will be in the airline ffp web sites
For expiry look here
Miles/Points that Do and Don't Expire. Click to open the wiki.
As post above, with ffp's with some you can keep ff miles/points alive with an eligible activity every 18-24-36 months (varies by ffp). FFP's that have hard expiry are not the best for an infrequent flyer or have many FFP's. The ff miles/points will expire before they can be used effectively.