The colour decides whether I get a toy or not. I don't like orange! I'm not a big fan of red, but do own two to spice things up.
I went through a phase where I wanted to buy my vibes in green, but I wouldn't touch a green dildo.
I've been lucky so far, there's always been another colour option that I liked in each toy I have purchased - apart from the VR toys. But I can live with that shade of purple. Just hate that they are all exactly the same colour - BLEH.