Hi cloud69
Were do you see your self in a couple of years time?
If you are convinced that you will still be flying - then I, personally, would recommend a share.
If on the other hand, you're not too sure, then carry on renting for a little longer.
I spent about 3-4 years renting after getting my PPL, which convinced me that i was serious about flying. At that point, I bought a share & have never regreted it since.