I always say, give the customers what they want
![Smile :)](./images/smilies/icon_smile.gif)
If they will pay and it won't compromise the results (this will probably bring better results), then do it.
Besides, you should be able to charge a pretty nice fee for that job
![Wink ;)](./images/smilies/icon_wink.gif)
Once they realize the cost, compared to the advantages, they may change their mind.
It sure doesn't hurt to give them a couple of options and let them see the differences, then they can choose.
1. Thinkpad W530 Laptop, Core i7-3820QM Processor 8M Cache 3.70 GHz, 16 GB DDR3, NVIDIA Quadro K1000M 2GB Memory.
2. Cybertron PC - Liquid Cooled AMD FX6300, 6 cores, 3.50ghz - 32GB DDR3 - MSI GeForce GTX 960 Gaming 4G, 4GB Video Ram, 1024 Cuda Cores.