UK banknote with consecutive serial numbers

Hi there, all though I've been using this site for quite a while as a source of reference which I must say is outstanding with it depth of information, and good honest people who are more than willing to try to help and share information on there forum. Which is great as I have only been interested in coins for a short time.

My question is how desirable are bank of England banknote which have consecutive serial numbers as I have 3 £10 notes and 3 £20 notes.
£10-KH11 740425/6/7 £20-KA73 621761/2/3

Any feedback and opinions are more than welcome.

Many Thanks Loooba

Welcome to the forum.
Here are eBay UK sold £10 listings ...
http://www.ebay.co.uk/sch/i.html?_odkw=3+consecutive+notes&LH_Complete=1&LH_Sold=1&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X3+consecutive+%C2%A310+notes.TRS0&_nkw=3+consecutive+%C2%A310+notes&_sacat=0
and for example in there are three £10 sold for £39.99 in November.

Similarly this for £20 notes ...
http://www.ebay.co.uk/sch/i.html?_odkw=3+consecutive+%C2%A310+notes&LH_Complete=1&LH_Sold=1&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X3+consecutive+%C2%A320+notes.TRS0&_nkw=3+consecutive+%C2%A320+notes&_sacat=0
and there are sales for £83 and £99 in there.

Also note that from the transactions mentioned above eBay kept 10% and if they were paid through PayPay, as most are, PayPal kept another 4,9% of the sale prices. Thus, the seller's profit from consecutive numbers is not huge, though some demand for such notes exists.