If you keep doweling on the amount you have spent on gambling you will probably come to conclusion that yes accumulated little money spent is equal to what you can obviously on a normal basis can't afford to loss but in the end you will have to afford to loss it reason because you only spent little by little.

But if we consider it in another sense as you thought of it truly nothing is too small to say we can afford to loss it, but does that mean we shouldn't make an attempt no, the little could some day pay you off by hitting a good lucky number and you will be grateful for the little risk you're taking.