I second that, Baccy Man. It's simply common sense to buy the plants as soon as possible when they come into stock to get them at their best, as has been said often enough before. After all, who would buy mouldy bread just because it's cheap?
As for TLC, spot on. If the plants are not looking too healthy but you put a little extra work in at the beginning, they will reward you in no time at all. Think of it like getting a dog from a rescue centre - it may have been abandoned or ill-treated, but you give it a good home, some decent nourishment and a bit of attention and watch it thrive, catching up with its more pampered peers in no time. The trick is to put the work in to heal them at the start, then they'll flourish.
And in the case of fruit bushes, can I assure all those who have bought from Woolies, Poundstretcher, Lidl etc that they certainly won't take any longer to fruit. Enjoy!