You're at the age now where you're going to start noticing what it's doing to you.
I was never a heavy tanner. I'd tan through summers, but I also stopped at 28. (32, now). It was at that point that I started to notice the little wrinkles setting.
Fast forward to 4 yrs later, I have friends that still tan religiously, and they look OLD. Some of it is genetics, of course, but they're not helping it along. The eye wrinkles and forehead wrinkles are your first markers. And they'll only get deeper. The more you tan, the worse they'll get. And while it may "hide" things now, you will reach the point where it doesn't. And that point isn't that far away. Sorry, not trying to be morbid. I just had this exact same conversation with myself 4 yrs ago, and I thank God that I stopped! I look younger than a lot of my friends for that reason.
Seriously, embrace your LACK OF WRINKLES right now, rather than "paleness". You'll thank yourself for it immensely when you see your friends start to age before your eyes.