The A500 was the first computer our family owned. All I wanted to do was play King's Quest 3. Nothing like EGA graphics and beeps to show off an Amiga, but hell, I didn't know.
Unfortunately, the first thing I did was Initialise the King's Quest disk. I was NOT a happy chappy. A quick lie to the retailer and I was happily playing. ;-)
Within 18 months I was experimenting with 68k assembler after the limitations of AmigaBASIC on Extras made themselves felt.
I reckon one of the best things about Amiga was the way Commodore wrote the technical documentation. It just seemed to be explained in a way I understood and learned really quick. Maybe I'm alone here, but it worked for me.