HELP! Are the Dredd Hardback Titan books worth much?

[Dodsy]

The downsizing of the collection is continuing (stay tuned for more fans of Inifinte Crisis at least lol).

Does anyone know what the going rate is for the Titan Dredd Hardbacks? Are they hard to find these days? (I only found one on eBay). I've got The Cursed Earth (which I believe is signed by Pat Mills) and Judge Child Quest.
Anyone know how easy they are to come by?

(Please note I've not decided to sell them yet, this is just out of curiosity for if I decide to).

[blixab]

Seem to be quite sought after - price varies seen some go for £5 whilst others close to £20

Suppose it's because most issues are the soft backed editions.

[Spikes]

As always, condition is King. Around the £20 mark seems to be the standard going rate.