Put it in perspective: Your DB is 3GB. My home computer, that cost about $500, has a 1TB (1000GB) hard drive. I could put 300 of your DBs onto my *HOME* computer.
30GB? 300GB? Okay, now *maybe* it makes sense. But, then again, maybe not. I can buy a 3TB drive for less that it would cost me to have you spend 3 days trying to shave 10% space from the DB.
An optimist sees the glass as half full.
A pessimist sees the glass as half empty.
A realist drinks it no matter how much there is.