It really depends on how much you use optical discs. I went from a notebook that didn’t have one, and I swore I would never do it again, so I got the TR. I never used the drive, so I decided to sell it and get the X. Long story short, I think I’ve used the optical drive 3 times in almost 2 years. If I need to move data I do it via WiFi or if it’s too big, via thumbdrive or external HDD. If I need to load software, I throw a CD in another machine and network the drive.
If you are not sure how much you actually use the drive, try to stop yourself from using it for a month or two. If you can do it, then I’m sure you’ll like using an X.
Erik