Thanks all. TBH, I'm not getting out of the GTI for any other reasons that
a) I've been in a MK7(7.5) Golf now for nearly 10 years (since 2013) and just fancy a change, but keeping the best bits from the Golf's (i.e. ergonomics, controls, infotainment etc), and
b)(and this is a big one), the price I've got though Motorway for my 4.5-year-old GTI means I've only lost just over 13% of my actual purchase price in all that time (which is insane and a result of the crazy times we are living in).