After much research on a good photography mount, I've 99% decided on a Losmandy GM-8.

I have a question for those in the know:
The Gemini costs about $1400 extra at purchase - will I regret not getting it at initial purchase, and end up getting it later???
The main thing I'd like about Gemini is PEC, rather than GOTO... are there other advantages of Geminin I'll end up wanting for??
TIA for any help guys.....