I guess it depends on what you need to replace/renew. A few spools of line at anything from a few pounds to £20 each, hooklink material at up to £20 a spool. hooks at typically £2 - £3 for 10. (When did hooks go metric, by the way? What happened to the good old dozen in a packet?) It's very easy to spend a lot without having much to show for it at the end..........
I shall be popping in to my local tackle shop this week and fully expect to spend up to £50 just replenishing hooks etc. Can be an expensive business these days!
Throw in the club memberships, which down here (Hants/Dorset) are running at around £150 a year each when you include night permits etc (and I don't use a third rod!), then it makes one wonder how much we do actually spend on our beloved sport each year. I suspect that for many who fish on a regular basis (unlike me), then an annual outlay of £500 - £1000 p.a. would not be excessive by the time that all the bait etc is factored in.
Still, it's only money - just don't telll the missus!
Dave