As watercolour artists, we know that good tools can make the job a lot easier. Brushes that have a bad case of mange and moult all over your work are one of my pet hates. Paper too, can provide battles you never envisaged. It wasn't until I did a stint in an art supply super store did I realise just how nasty the "cheap" stuff can be. All the short cuts they take to make products "look" like the quality items, only to get them home and they are major disappoinments. Usually after hours of time and effort have been lost to them.
So I made the decision that I will save a little longer and only buy the proven tools of my trade. Making a living from illustration and art is already hard enough!
So even though top rate tools won't paint a picture by themselves, they will make the job so much easier, and a lot more fun!