If you really want it and can afford it why not? The 110 Anniversary offer is attractive with all the "free extras"- but note orders need to be in before 31st Jan - for delivery anytime during 2019. The cost to change seems reasonable in my view.
I would 100% have a long test drive in a plus 4 just to be sure your happy with the model - its handling and power delivery etc. I'd be keen to know how the character of the Plus 4 compares to your current 4/4 and which you prefer.
Last edited by andymot; 17/12/18 11:32 PM.