When to move from parking to mini site?

[monaghan]

If a domain is making a reasonable click rate (and paying for itself!) do you leave it parked or is it worth making a mini site?

I've a number of domains getting quite low visit rates (less than 100 visits/month), but getting a reasonable click rate (in 1 case > 40%, but most between 10% & 25%) Would these be likely to benefit from a mini-site or are they best left ticking over on parking and take the income?

 

[Admin]

My parking income is dropping through the floor, I would develop as many as you can.