That's true, some fees are much more expensive than others, and it's a good idea to compare before making any investment.
Quite a bit of my investment is in FZROX and it doesn't have any fees, but it's only available through Fidelity. I also invest in FXAIX and the gross expense ratio fee is .02%.
I do like how ETFs are available to purchase any time instead of after the market closes.
Btw, thank you for the article. I can see why ETFs would be a better option in a brokerage account due to not having to deal with capital gains.
I've had an investment account for roughly 10 years, but I didn't start investing each month until a couple of years ago.