diademhill
Fish Addict
Actually , in the UK, you can get tanks up to four feet long at good prices online with reasonable carriage costs. It is worth searching & then going in with some print outs to a couple of local dealers and see what they will do for you. You may get something thrown in if not an actual discount.It's doubtful you will find anything other than small (5 gallon or less) tanks online. The shipping of a fragile product is quite expensive and makes it cost prohibitive. You would actually be able to buy a tank cheaper from the LFS than pay the freight on one bought online.
If everyone bought their dry goods online the shops that sell fish - with their increased overhead - would go out of business so it is in everyones interest to spend wisely & "bang-on-the-counter-ability" is worth a few pounds. If everywhere local asks silly prices it makes sense to buy online. Ebay is worth checking too - often tanks this size come up and not all are secondhand. Aquarists-classifieds often has trade ads.
HTH
Sue