I've done this before. When I did it it was a conscious design decision to use price framing[1], so the site has a very expensive product, two mid-priced products, and a free product. It's nice when the very expensive product sells, but it's mostly there to make the two non-free products look like reasonable purchases.

I haven't A/B tested it, that's something I should do.

[1]https://www.psychologytoday.com/blog/the-decision-lab/201109...