I was in Congleton yesterday.The busy main shopping street has a similar mix of shops to Marple, a reasonable mix of retailers, four vacant premises, some charity shops, coffee shops, and various service providers but there are also a Morrisons, Aldi, Farmfoods and Costcutter in the centre plus a Tesco Superstore (average Superstore sales area 38,000 sq ft) and M&S Simply Food on the edge of centre and a Coop supermarket within 1km.
Congleton has a population of 26,000 so it is larger than Marple but, even taking that into account, the facilities for shopping bear no comparison. Since we moved here 35 years ago I have forgotten what it is like to shop locally, the weekly commute out of town has become second nature although we do use just one local retailer, The Hollins, a shop that never ceases to amaze me