I used to frequent a woodworking forum where one member caught on to a major deal on a dovetail jig through an internet ad from a well known online retailer. The ad listed the jig for 200 bucks when it normally sells for around 400. He passed this on to several members not knowing the price was a mistake by the retailer. Several of us (probably 20) jumped on the offer only to get an email later insiting the price was erroneous, but we could have it for 10% off the regular price, because they felt bad.
One of the members was an attorney who cried foul and held their feet to the fire. We ended up getting the jigs for $200.00 in the long run.
I was glad it worked out the way it did, because like you, it was worth 200 to me but not 400.

If the ad said 25.00 when you bought them, that's what you should expect to pay.