Multi-night Dates

What's y'all's strategy when it comes to a band doing a multi-night stop on tour? If it's a two night run, first night or second night?

I'd always assumed the second night would be the best choice, thinking the band would be going all out. The older I get, the more I've seen/heard, I think the first night is actually the show to hit. I think the bands, instead of saving the "best for last", actually find that first night most rewarding. Pretty sure that's the move from here on out.