Blond Ambition remains the high point of her career for me. I became a 'proper' fan in 1991 when I bought The Immaculate Collection on cassette after seeing it had 'Vogue' on it, which was one of my favourite songs. I'd been aware of her since seeing the 1986 Christmas Top Of The Pops episode where they showed clips of 'Papa Don't Preach' and 'True Blue' and was aware of most of her singles through to 'Vogue,' but wasn't a 'fan' so to speak.
That all changed after seeing In Bed With Madonna and Blond Ambition in Barcelona. My life changed after seeing these and I became obsessed with that tour. I'd never experienced anything like it before. The costumes, the choreography, the dancers, the sets, the ponytail, the headset... the music! Everything about it was inspiring to me. I remember watching Ciao Italia roughly the same time as seeing BA and was so disappointed. Not that WTG is a bad show, it's great. But Blond Ambition was A+.
Looking at it now, obviously live shows have changed and grown and technology is everything nowadays. But watching BA is like seeing the birth of these big extravaganzas. Both Prince and Bowie had done pretty spectacular and theatrical shows in '87/'88 but it's as if BA was the more fine tuned version of this type of concert.
I haven't watched a full BA show in a while now but it will always remain the pinnacle of Madonna's career for me. Not to say her work after BA isn't equally, if not more creative or interesting (MDNA had moments that reminded me of BA, the opening, 'Vogue'), it's just BA sums up M perfectly in 1 hour and 40 minutes.