Love or Loathe: Cacti?

I love the organic and textural feel plants bring to an interior but find them so hard to keep alive! Which got me thinking about cacti - they have a fantastic sculptural quality and are pretty much indestructible.  I am not sure how they would like life here in steamy Singapore but I figure if they flourish indoors at my family's home in equally damp Seattle, then why not! I also love how cacti naturally grow in such soft, dusty shades of mint, sage, purple and gray and I especially like them mixed in with other types of plants.

So what is your take? Love cacti indoor or find them a bit too rustic? 

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