It is novel to see a Cactus because it is what people normally associate with desert.
Tropical plants have little meaning because there are many northern plants that resemble what we normally grow in our cold climate. Flower is a flower, a big leaf is just a big leaf tree to someone that is not into plants.
But most people recognize a cactus and do not relate to it as any plant that could possible survive snow and winter nor does it resemble any other plant that northerners normally are able to grow in the ground.
What has made it easy for me is I have the room to develop a garden that is devoted to the desert look I desired. They are not included in my main garden areas. So I do not risk getting hurt by them ever again.