Price is fairly static for the GSA, had mine for 4 years and the going rate now is about the same as when I bought mine, best 2 wheel investment I have ever made was buying a 1966 Lambretta SX 200 for £150.00 in 1979, valued recently at £7,000.00. Generally though, I have not been very good with 2-wheel investments, Had the first model Gsxr 750 Slab Side, a very nice one, featured in PB, but in 10 years it only increased in value slightly, same for CB550, S1 Kawa, X7 Suzi.