Commuting is both time consuming and expensive. Sometimes your show time isn't commutable. There are times where you'll have to commute in the night before and pay for your own hotel room. You both waste your day off and waste money on a hotel room. There are times where your flights will get delayed on the last day and you'll miss the last flight home and have to pay for a hotel room again. There are times where you're just going to get bumped out of the jumpseat and not be able to make it to work, and likely not be pay protected for the missed work.
There's nothing wrong with commuting. More than half the pilots I fly with are commuters. I guarantee you'll be much happier if you don't commute though. It's time consuming, stressful and costs money. The time and money you spend commuting can be better spent on other things in your life.