Eh, I like funny things. If it's funny I'll laugh. Some memes, no matter how old or over used are funny to me. Some just aren't. And it's also how it's used, the context and of course the content.

Plus I don't deal with 4chan or whatever so I'm now drowning in memes either, I haven't seen one in a few days. So I guess over saturation could be a problem as well.