Does anyone keep the runflats?

I was investigating getting a spare for my new X7 and see that it seems like 100% of people here ditch the RFT when they replace their tires. Is the ride quality and cost that much better? On one hand, I like the piece of mind to not have to rush it off and hope they have the right tire size in stock. On the other, I don't like that RFTs aren't repairable and you need to replace it each time a screw gets introduced to your tire - an occurrence of about every 2 years.