If you keep bidding up over and over you will block any network provided there's enough people using it. Bitcoin has the oldest infrastructure in the industry and the most users which obviously makes it the most vulnerable to such blockades. The cost of transactions will keep going up until people finally stop outbidding each other to get into the first block. Right now if you pick the average cost of transaction and send something you still may not receive it. And i'm not talking about receiving it in a given time. I have sent a transaction over 2 days ago with an average fee. Within 6 hours the average fee has tripled and my transaction kept getting lower and lower priority until after 2 days it went into the infinity bracket. You can be in a similar situation now if you choose to pay $50, you can never know how many people will decide to pay $150 or $200...
It's as much a problem of the users as it is of the network.