Selling sets to Pley and/or Netbricks?

Apologies if this has already been answered elsewhere - I did try search function, strangely nothing came up for "netbricks" (I haven't tried "Pley" yet. 

So those are services that rents out LEGO sets. I have dozens of Friends theme sets (used). All pieces are put back into ziplocks, and they then are put back into box among with instruction booklets (which I see is mentioned as a requirement on Netbricks). And the Netbricks FAQ also says I can ship my sets to them for free?

I think this might be the way to go for me - anyone have good/bad experiences doing this? 

The reason why I'm considering this is I find putting sets up on auctions (taking photos, creating auctions, etc) is just too much work. So I decided to make an auctioned lot of about 35 Friend sets - according to Brickpicker pricing guide, using the "used" pricing, my collection is worth roughly $640. But I'm not even hitting 40% of that figure. And since most of the Brickpicker's "used" pricing for Friends sets are already under retail prices, it seems I would have made more if Netbricks bought those sets off me at 40% of retail price. Is my thinking sound? Yes I probably would make more money individually auctioning sets off one by one, but right now having free space in our house is much more valuable to me than making money.