I started with the hobby about a decade ago, and it was totally spontaneous. I went for a massage, expecting nothing but a few knots broken, but at the end, besides a deep tissue massage i got a nice HJ. One thing led to another and after a few months i was already spending time browsing parlours and girls all over London. At that time, i was seeing girls once in a month and spending £100-150 per session, mostly Thais as they were within my budget limits. Over the time, i visited many girls but have never crossed the £300 line and never will.
It also depends on your wealth, for some lads £1000 is nothing and for others is fortune.