I found that a lot of the useful things like cables, IC adaptors, test clips and pogo pins are still good value when bought from Chinese suppliers. They use this stuff in their factories, and so their local suppliers produce economical parts.
You might wish to have a look on Alibaba or AliExpress or TaoBao - for example
https://www.alibaba.com/showroom/ic-test-clip.htmlI recently bought some adaptor pcbs to convert SMT ICs to DIP - they were a fraction of the cost you would pay locally - and arrived within 2 weeks of placing the order
Ken