Hello. When you first sit down at the table, how much do you buy in for?

I'm a small stakes player. I prefer a $5 table. I play DD. I spread 1 - 8. I buy in $100. Is that too small? I'd rather look like a chump chasing a win and pull into wallet my wallet for another $100 than buy in too big only to play $5/hand.

Thoughts?