Store auditioning and then buying on-line from others. How do you feel about it ?

One gets what one pays for.

Just don’t plan to request warranty work from that dealer whom you screwed over by auditioning gear with them and then ended up buying the same gear elsewhere or online.  

What comes around goes around. Karma screws those who screws others. 

Karma screws everyone in different ways. No escape.

Dealers can be helpful. After I bought a pair of Magnepan 20.7 locally (and had bought 3.6 from the same dealer 8 years earlier)He was blunt and told me 'You don't need a new amp'.(He had also sold me my amp 8 years ago)                            
And later he offered to let me borrow a Marantz SA-10 for a week.No hassle. I used it ...liked it ... and used the money i probably would have spent on a new amp, on the Marantz SA-10.  So good Karma I guess.

I have never auditioned at a store then bought online but where I live unless you want an Anthem, Integra or similar items mainly used in Home Theaters there is nothing to really audition anymore though some will special order certain items.

Yeah, I myself wanted to do it many times and still do but never did. Zoroaster says no.