I wanted to buy my local pub once... Sat down with my main clever guy (my dad) and within 5 minutes I was convinced it was a bad idea...
A.) It's my local so I'd be drinking all the time
B.) I know everyone and they would do the whole "I know the owner thing"
C.) I’ve spent so long going there for fun that I couldn’t possibly treat it as business
D.) Repeat A.
Go for it though, as a restaurant it is a slightly different theme, but not entirely