You compare against previous payments...

If you were never in that situation, my experience is in paying less over time as both GBP/EUR have been getting stronger than USD.

Plus, pricing in the home currency is usually larger than the exchange rate (i.e. $10 = £5.83, so pricing would probably be something like $10, £6. Or even more - if not $10/£10 - you know who does that!...)

I'm working on the assumption that if they suddenly started offering services in GBP, they'd price at £5 rather than $5 (like virtually all companies do). Meaning the same service would end up costing £2/month more than it does atm with the current exchange rate.