What is better, gas struts or regular struts? on 2002 Kia Spectra

I need to replace the struts on my car and found some gas struts online and was wondering if they were any good or not worth the extra money.

Asked by for the 2002 Kia Spectra
ask whats the warranty. there all filled with the same gas
Yeah really, I think some people just like asking questions.
Huh?..What do you mean?
Check the bio!