A nice new spade?

I only buy cheap tools if I'm either not going to use it much, and/or it will be used for lighter work than you would generally use it for (hope that makes sense - an example would be my lawn edging shears which are used about 3 times a year to trim the 10' edge alongside my pond.)

Not got the Wilco spade but I would suggest you pick it up and compare it with more expensive brands before buying - it could be an excellent buy but could also be too insubstantial for anything other than light work, and you've already got one nasty cheap one!

 I think it is very important to check the overall length of the spade and buy one that suits your height it can save a lot of aching muscles particularly if you are tall.

I have been looking at spades. The stainless ones are welded. Look again at the picture and the V shape where the handle joins the blade -that is a weld. That is the weak link, not the handle.

I had a close look and if it's a weld then it's the best bit of welding I've seen in a long time!

I know it's a bit more than the spade you linked, but have a look at bulldog tools, they are a British company, and the tools are drop forged from a single piece of metal, so no weak points/welds to worry about.
Maybe something like this would be suitable if you can stretch to it?

http://www.bulldoghandtools.co.uk/bulbds-bulldog-digging-spade.html