More than 60 people packed the senior center last week for a public hearing on a proposed $15 million sports complex at Cantine Field. While many were excited about the prospect of adding a huge indoor arena to the already first-rate recreation complex, others were wary of the proposed public/private partnership that would allow businessman John Barese to operate tax-free. [He estimates the project would provide $65,000 per year to the town through various user fees, mainly from parking.]