I don't care how cheap, I'm never buying Logitech again. Their products are poor quality and the warranties are not worth the paper they are written on. Logitech does not honour it's warranties. CS are dishonest and unhelpful. Read their reviews. Also there have been lawsuits in the US by consumers who were lied to and strung along by Logitech who deliberately tried to avoid warranty assistance, amongst other things
Not true. It depends on want you're buying. The XL mouse mat G840 is £40 on Amazon, £43 on Logitech's site. With the discount it's £32.25. You can also get the flagship Logitech G PRO Wireless Gaming Mouse with Hero Sensor for £97.50 instead of Amazon's price of £125.
The prices on their website are so shit that even with the 25% discount, Amazon is still cheaper.