Any non-Kiev's take helios 103 and Jupiter 8M?

[marlinspike]

Since I'm selling my no longer working Kiev as a parts camera, and will be replacing it with a nice rangefinder, is there any reason I should hold onto the lenses (a Jupiter 8M and a new old stock Helios-103)? I don't know what I'll be replacing it with, but it won't be Russian made...so is there any reason to hold onto these? I might be replacing this with a Contax III...would the Contax 50mm be better than the Helios (if the answer is no, that would be the only reason I can think of to hold onto these).
Richard