This 8ft trampoline with enclosure and cover is just £69.00 at B&Q right now, reduced from £89.00.
This is one product I can vouch for as we invested in a trampoline just like this one from B&Q several years ago and it's still going strong, and represents the best value for money by far of all the toys we've bought for our kids. They never tire of it and use it in all weathers.
It's not available for reserve and collect but delivery is free on orders over £50.00
There is only one review of this trampoline in B&Q's site but it's a positive one:
"Great purchase. Children aged 11 and 7 needed a new trampoline so saw this on line and ordered it immediately. Delivery was great and the instructions were very easy to follow. Had the trampoline built in no time at all. Much sturdier than our previous one and is fab value for money, especially as it includes a cover too. Kids have been on it non stop and is a definite must-buy for anyone with kids. Would thoroughly recommend."
With thanks to kaned69 @ HUKD!