I'm a plumbing, gas and heating engineer and i would probably want to pay about $3k as an end user.
The "problem" with marketing a domain name retail, is not to find the people willing to pay $3K, but to find the one or two people willing to pay much more because it's worth much more to the ONE larger company
As noted, it's a dot-net. But the dot-com is used in the UK, so maybe having customers remember the dot-net is not that bad.
Of course you have to wait years to sell retail. If you had the name a while and have received no "retail" offers it's not a good sign that large "bathroom" companies want it, unless you scared them off with crazy asking prices.
Fortunately for you "Bathrooms" is a product keyword that people often search for (unlike my Shrewd.com). It could earn PPC money with a parked page, develop it as someone said above, or sell it to someone else who will develop it into a better PPC Blog-like page. I think Moped.com just sold to some SEO firm for 35K, but google it and I am not sure how the search terms compare. A PPC expert would give you a better idea of how much one could earn from PPC, and even that income is uncertain depending on SEO success.
Of course the wholesale price of anything, like domains here on DN forum, is a fraction of the potential retail price.