Speculating that OP was coerced based on what OP stated just is not there and does not help. If OP made a poor decision, that is a poor decision and he is stuck. He should get out of his poor decision any way he can and take whatever loss it is that he will incur.

If he wants to figure out if there is a way out of the contract, he should consult an attorney. What he needs to do is figure out whether the likely value of the contract is worth the cost of the lawyer. But, he won't know that until he at least speaks with a lawyer. Many lawyers will provide that initial consultation either at no or a very reduced charge.

As to the broader issue, while there are apparently satisfied customers out there, OP asks why so many people recommend time shares. The answer is that if he consults a fee-based financial advisor, in other words someone who works for him, not for some company and therefore has OP's financial interest at heart, he will not find many competent financial advisors who recommend any form of a time share anywhere.