I've spent 415k AA miles (only 185k of that was for me, rest was for family/friends). One was a waste, 60k miles for a ticket from Europe to US that I only ended up using half of. I recently spent 250k BA miles on my honeymoon, two FC tickets to South Africa.
98 60k europe lhr-aus-lhr (only used lhr-aus)
99 60k australia aus-mel-aus
01 25k upgrade mxp-aus
01 25k upgrade aus-tpe
01 15k new york
01 25k g/f upgrade
01 15k g/f new york
01 40k g/f san francisco
00 50k mom+sis
02 50k wedding guests (joint US/AA)
02 50k wedding guests