Everyone I know seems to swear by Tumi. Thus, I bought a Tumi roller and briefcase. I am just as happy with my cheap rollers. I've found a couple cases that have better storage than the Tumi for the way I pack. My Tumi sits and collects dust in the closet. I wouldn't buy it if I had it to do over again.

I buy most of my bags at ebags.com, and have paid less than $100 for each of two rollers. One is 20", one is 22". I don't know if there is a UK website for them.

I recognize that my opinion is contrary to most.