Board Thread:Roblox help and discussion/@comment-5903643-20180614002143/@comment-27177606-20180614003703

If you enjoy being on the platform and playing games then there's not much harm in investing a little bit to improve your experience. If you do choose to spend, though, I'd advise keeping at least 100 bux handy at all times in case a cheap Limited comes out that you can resell for profit (providing you have BC as well). It's how most users keep generating a supply for themselves without having to directly buy more from Roblox.