Have to disagree with you on this one. You can only sept backward a limited amount of times. And if you save and quit to come back to work on the file another day you can't sept backwards at all.
Once something is erased, it's gone forever. With Masks, if you make a mistake or change your mind about what you want to do, you can always un-erase any part of the image at any time. The only extra step is clicking "Add Layer Mask".
Give Masks another try, they're worth it.