Probably lots, my first Palm was a TX in 2006, and I remember it was ~£300. I used it with a IBM T60 which was was I recall £1200+

I had an IBM R30 before that in ~2000 and recall it being ~£1500 as well.

Laptops weren't cheap!

The 5MX launched in 1999 at £480. I bought a medium-spec Dell Inspiron in the same year for around £800 if I remember correctly.

Prices in the US were similar.

I remember the Psion series 5mx price was about half the cost of a laptop. The sales clerk in the electronics store tried to convince me to buy a Palm device instead, but I had seen a Psion series 5mx while in Europe and knew what I wanted.