Of that $441,600/year, $245,760 is VMware's own license and $195,840 is 2,880 hours of estimated management overhead at $68/hour, fully loaded (U.S. Bureau of Labor Statistics), not just the sticker price.
Your own assumptions, live, not a quote for either platform. Basalt is $800 per server, per year, up to 100 servers; above that it's a custom quote (see Pricing & licensing).
Three lenses on the same delta above: change your own numbers there and every figure below moves with them.
Tell us about your current hypervisor environment and what you're thinking about changing.