Consumers like having options, but sometimes too many choices can make shopping a nightmare. That can be especially true when shopping for something as complex and personal as health insurance. In the most recent open enrollment period for the Massachusetts Health Connector, 11 health insurers offered a staggering number of plans: 126 in all, each with different premiums, out-of-pocket payments, and benefits. One insurer had more than 30 health plans available. For the next round, the Connector plans to reduce the options by about a third. The Connector is the state agency that serves people who don't get health insurance through an employer.