Got a Thomson on 2 out of 3 of my bikes, and the other will probably soon have one too. No need to spend £60 on them when you can usually pick up an “as new” one for £35 to £40 from the classifieds on here or on ebay.
Why a Thomson? Well cos nothing else comes close in terms of the fabled light/cheap/strong “pick two” mantra. Thomson’s ain’t the lightest (though they are pretty light), they ain’t the cheapest (though they’re a lot cheaper than some posts!), but they’re pretty well near the strongest. They’re also very well made, look good in an understated and un-showy way, and will outlast just about anything else on the bike. Anyone ever seen a bent one? I haven’t, and I’ve seen just about any other type of post, even ones claiming to be built for heavy duty use, end up bent!
IMO they are one of those bits of kit that despite not being cheap, easily justifies their price tag. Though again, like I said, no need to buy brand new for RRP.