Local pickup for speakers - should I let the buyer in the house or use the the garage?

Let them in, offer a drink and be cool. Buyers are human too! 
 

in all seriousness, just be nice. I had an amazing time as a buyer at a sellers place. I ended up there most of the day we had some nice coffee and a couple of cocktails. Listen to music, put the world to rights. 
 

he’s the one who’s probably slightly more at risk. It’s far easier to take money than run off with heavy hifi gear. 
 

you will get a read on them within a few minutes and just be careful but nice. Who knows, could be a long friendship over a shared interest. 
 

If I sell something smaller or portable, I usually meet someone at a Starbucks or some other neutral site. When I have sold more expensive or larger items, I use a local hi-fi store that sells new, used and vintage equipment and they sell it for me for a 10% commission.  I don’t really want to let a stranger in my house.  

I always have people meet me at the Police Station. 

kerrybh has the right idea. There's post's here from dreamers and realists I am the latter. A good con man can fool anyone. Have a couple guys there with you , if you don't know anyone hire them easy to do and have a pistol racked and ready hidden but within easy reach. If the buyer has someone with him they wait in the car. If both need to hear them they can switch. House demo a must. If they don't sound great you may lose the sale