While I was not around before the time of mounts and the bazaar, I do believe I sort of take them for granted. Being able to just drop by the bazaar to sell some stuff, and maybe pick up a new wand while I am at it, it is pretty much second nature to me now. (I always find myself going straight into the bazaar when I am training my younger wizards, lol) I only have two mounts for all three of my wizards, so I keep my gryphon on my level 46 and pass the seraph wings back and forth between my other two, whenever I am playing with them. I don't think I'd be able to function without mounts, ha ha. Another thing I take for granted is potions. Just being able to press a button and be all healed is something simply brilliant. I don't know where I'd be without them.
I own the swift gryphon and panther, keeping the panther on my necromancer and passing the gryphon when training other wizards.
Going around without the speed is almost insanely slow compared to the speed I've grown so accustomed to with mounts.
And the bazaar for sure, I wasnt on before the bazaar, but I was there when pets were sold, oh how I miss the pets there. I remember saving 10000 gold for that heck hound, so happy when I got it <3 never selling that one XD
I've also started using quicksell a ton, when I'm too lazy to pop by the bazaar from another world XD