Recently booked a Mile SAAver ticket to Seattle without thinking about it too much and I think made a mistake about the usage of 50K miles. The cash price for a P ticket was $735 round trip. Should I cancel the ticket and pay the $150 reinstatement fee and rebook as a cash ticket or should I just take it as a lesson learned, do better next time? 50K points for a J ticket to LHR is worth nearly $2,500. Thanks for the feedback in advance!!