Most promos allow you to build the top card (89 for headliners) with lower pieces (86s) and get all the 86s back for less than 50k cost. Build your team doing this as you stack coins. If you're an awesome h2h guy and need all the best players, this may not work, but for me, it's been going fine. Another benefit is every promo helps you, where theme teams may go weeks without a card for your team. I also fill in gaps with platinum cards I've sniped for almost QS value. These will never lose value.
Most promos allow you to build the top card (89 for headliners) with lower pieces (86s) and get all the 86s back for less than 50k cost. Build your team doing this as you stack coins. If you're an awesome h2h guy and need all the best players, this may not work, but for me, it's been going fine. Another benefit is every promo helps you, where theme teams may go weeks without a card for your team. I also fill in gaps with platinum cards I've sniped for almost QS value. These will never lose value.
Great approach and advice