From what I've heard, it's only worth the money to go for acrylic if you're buying a larger tank (100 gallons and up basically). If I had the money, I would buy acrylic. That is because I worry a lot about leaks and cracks and with an acrylic, I wouldn't have to worry (acrylic is about 17 times stronger than glass). The only downside I've heard of is that it's way easier to scratch.