I think my gripe is less that it exists and more so that it's not a negotiated agreement. I think it should only be allowed if the contract was negotiated between two parties with full authority to offer any terms in the negotiation. If it's a standardized, take it or leave it, contract where one party has no opportunity to offer alternative terms that get proper and full consideration by the other party, it shouldn't be allowed. In most of the examples you give, they are contracts that have been clearly negotiated between parties, not click-wrapped take it or leave it, my way or the highway, terms.