freeDOS model for cheaper laptop

Jun 27, 2018
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10
Going to buy a gaming laptop on budget
Laptop: MSI GL62M 7RDX-2630 15.6" FHD Gaming Laptop Black (i5-7300HQ, 4GB, 1TB, NV GTX1050 4GB, DOS)
as you can see this laptop is DOS,
if it compare to a win10 pro version on same model.
The price different was about 124usd (a lot for me)

in this case, will you suggest me to buy the dos version?
my plan is buy the laptop, bootup with usb to install window 10, then look for activation method afterward,
correct me if i was wrong..