B2reflect
Keep the one from Walmart, it sounds sturdier. I received my rebounder as a gift from my parents, several years back...like `15? I know I have not used it consistently through the years but it is still as good as it was back then. So, if your budget only affords a Walmart brand right now, then get that and when you are ready to upgrade, if you feel the need to upgrade, then you can. In the meantime, you will get the great benefits from the rebounder you have.
Peace,
Beth
Hope it helped...