If you regularly clean your wheels and treat them with a nice wheel sealant I don't see why painting them with Clearcoat would be any less durable than powdercoating.

Its only 150 difference so not a huge deal, you've probably had the silver painted wheels for a while now and how has the paint job on them held up? Any clearcoat peeling? If not, I don't see why repainting them would be any less durable.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards