How will the bus cost more than £1-2 per 15 minutes, are buses very expensive in the UK, or are you just not spending very much time at these stores?
I will say, that sounds expensive for parking, but completely not out of line with what I would expect to pay for premium (location) parking, though I'm used to VHCOL parking rates and maybe you don't live in that big of a city.
Given the choice between the shopping center with convenient parking and taking the bus downtown, the shopping center still wins.
This is in London, not in the main center but about halfway out. Many of the original towns and villages still kinda-exist to a certain extent (but obviously the gaps have been filled with urban sprawl) so there are lots of smaller "high streets" dotted throughout, typically near tube stations etc.
£1.85 each ride. So £3.70 round-trip if you can do it in just two rides. There are discounts if you are quick (e.g. you might only pay once) but it is time dependent.
Or just drive directly and quickly with zero hassle for pennies of electricity and free parking in a shopping center.
Yes I think that was parking cost not bus cost they were talking about (buses can be expensive for short journeys but the cost usually doesn't rise that much for longer ones in my recent experience - I paid £3 for a 40 min journey last week. But bus fares were capped at £2 for ages so I don't have a good feel now for what they cost).
Parking in premium areas can certainly be £5 an hour - but that really will be for premium areas with few spots and high demand, although that's a common situation in historic town centres. I wouldn't be mad enough to try and park in London but I'd expect parking there to be through the roof. The places I usually park for shopping etc (outside London but still SE) are more like £1 an hour in town centres, or free when the car park belongs to a shop or is in a less on-demand area.