I meant in the sense that the leather and suede combination seems today rather 'fancy', while Soviet dress in the 1920s one imagines was strictly utilitarian. I wonder who would have worn boots like these in 1920s Russia.
I think my rather unhelpful answer is that it depends how good it was in the first place.
I have four pairs of SLs which I wear regularly. Three are some of my most comfortable shoes and have held up very well. The fourth from the start creased the way cheaper shoes with poor leather do. I should probably have returned them.
I doubt you'll find anything for £100 but if you can double that you will get something that will last you a long time.
I'd recommend a visit to John Rushton in Wimpole Street. He often has end of the line etc reductions: http://johnrushtonshoes.com