£24k effective (remember it's tax free) for 30hrs a week from home? Versus £10k shelf stacking at Tescos for 30 hours a week (£10k is what you'd get at min wage for 30hrs)? Actually, I'm not doing 30hrs a week anymore - as I've got more efficient and organised, I'm not doing anymore than 20hrs a week now. Sure, £24k isn't going to get you far, but it's a great supplemental income for someone who's retired and/or a student.
Plus, I like working with numbers - I don't find it boring at all (I was actually going to retrain as an accountant before I embarked on my current course).
No, I've not included that for obvious reasons - I put that down as £200 profit.