Hey Steven,
I'm afraid to say I agree with the others. While the play-on-words is amusing, it's hard to imagine what self-respecting business or product would be built around this name.
When you're talking about getting a piece of the "flu business", I think your biggest hope is that the name would be purchased by a pharmaceutical company... However their medications usually go by very medicinal sounding names (Relenza, Rapivab, etc.). The one flu drug that comes close is Tamiflu. But I just don't think a pharma company would attempt to market a drug by giving it a name based on a head-scratching word combo (nothing about the flu is beautiful, right?)... it would hurt their credibility.
The only other use I can imagine for the name would be as some kind of gag or personal site, but those usually don't fetch much of a price-tag.
Some indicators worth noting here:
- No other extensions of this name appear to be registered.
- You were able to recently hand-register the name... meaning it went through the expiry process without any other domainers seeing enough value to pay more than reg fee for it.
- Looks like it was deleted in August 2018, so I assume it even sat untouched for a little while.
All that being said, I'll reserve giving an appraisal price range without knowing the traffic numbers. What are they like?
Just keep in mind that it may be unwise to approach Pantene (the owners of beautiful.com) with an offer to buy the name... doing so may indicate a bad-faith registration.