There are crappy $8 a roll films, and fantastic $2 a roll films. You really should try some different films out and see what you prefer and what works best for you. Start out with the cheapies; you can get $2 a roll Kodak or Fuji at many grocery stores, Walmart, etc... Shoot some of that, and shoot some $6+ per roll film, and see if you notice a difference.
Much of today's consumer films were yesterday's pro films. I noticed today that Fuji consumer film packages advertise the 4th color emulsion layer that helps with odd lighting (flourescent, etc...). That was pro film only technology not too long ago.