[brudgers]

These webpages receive more traffic from google searches than they do from QR redirects

The web is many orders of magnitude more accessible than most small museums, and in a potentially important sense people viewing your webpage are your visitors. It is likely that a significant fraction of the physical visitors have already been webpage visitors.

Now a little personal bias. If I'm in the museum, I didnt come to surf the intertubes. I don't really want to be in an environment where using cellphones is acceptable, let alone one which encourages it. Headphones and written guides don't intrude on other people. Cellphones do.

But that's just me of course. The reason I mention it is to suggest investigating what would improve the experience of the sort of people who actually visit your museum. Will it be enhanced by the web? Would money be better spent on physical objects or building infrastructure or display fixtures and lighting or staff or literature or scholarship or educational programs?

How many guided tours does creating an In museum digital experience cost and which creates more value for a physical visitor? Digital resources are a fallback for over demand. For under capacity systems they are a lower quality solution than full service.

Good luck.