@Sarah
Thank you! Most guests do drool a bit when they see my free standing tub, but like at @Alice-and-Jeff0's place, only a handful have ever used it. Also, despite what @David said, the majority who have used it (I think with only one exception) were American. American guests seem to like a bath more than Europeans! I hardly ever use the bath myself.
@Alexandra316
If you can knock through that wall and have both walk in shower and bath within your budget, then go for it. Here's one layout that fits both into a relatively small space:
You can also find compact, but deep, freestanding baths like this one.
If none of these are an option, I would say go for the shower. If you are not attracting the family market, the vast majority of your guests will appreciate a great walk in more. Sure a soak in the tub is nice, but it's a luxury. A good shower is a must. Many five star hotels don't have baths these days, but they all have showers.
I've tried to go for the best showers I could within my budget. One of them has a 30cm (think that's 12 inch) shower head. Another has 'shower bars' i.e, vertical bars with tiny jets all down them. You do need very good water pressure for that kind of thing though, or it's a waste of money.
I collated an insane amount of images recently when researching for my new bathrooms. Please feel free to take a browse if you're in need of inspiration:
https://www.pinterest.co.uk/londonstylist/wetroom/