Would you really sell something and give them for then 150 euro for the service ?
The fees aren't the issue. If you can sell the item for €150 more then you could otherwise by using a popular platform with lots of potential buyers, then you're no worse off. At least you know the fees in advance, and from time to time they do offer a £1 final value fee promotion.
The real problem selling on Ebay is there's next to no seller protection. I've had a couple of bad experiences recently, one buyer who was ridiculously picky about the condition of the
outer packaging of the product they bought, and another whom I'm sure damaged a perfectly good product and returned it to me as defective; there's no way the dents and sharp scratches it had when I got it back could have happened in the post without the box also being damaged - which it wasn't.
Selling on a forum might be one option, but there seems to be an unwritten rule that anything sold that way must be at a price which is highly favourable to the buyer compared to what the same item might fetch on Ebay, more than wiping out any saving in fees. They're not free from dishonest people either; just ask the idiot who offered to sell me an alloy wheel some years ago through a popular car forum, then tried to disappear with my money.
If anyone knows a better place where I can sell a couple of repaired / serviced hi-fi amps and a PS3 console, do please let me know. I just want to deal with an honest buyer at a fair price... seems that may be too much to ask these days