In general, I have found the better the speakers the more they weigh. If you are buying speakers in that category, I would expect the dealer to come over and set them up, and tune them.
If you need to move them... yes furniture sliders make easy work of hundreds of pounds.
I now have Sonus Faber Amati Traditional... something like 150 pounds. It is easy to rotate on a single point to change toe in. Or walk a little ways.
I would not add low weight into the equation, it could easily be a big compromise in sound quality. At that price point there are lots of really good full range speaker systems available.