I am ready to get into another one of these, but have been trying to make up my mind for weeks with no clear decision, so I thought I would ask. I currently have a Romy RPK built from a kit that I did, its a nice one. I am considering a Vector RPK74 as I have lots of surplus 5.45 ammo and would rather shoot it than my non corrosive wolf 7.62. Also considering an AES10B; that would be the cheapest option and I could put the Romy wood from the kit on it as the one I built now has Russian laminate on it. The other option would be a Vector RPD; which I would love to have as I just sold my only other belt fed (a 1919A4). However the RPD is expensive and I find myself asking if I would be better off using the money for other projects and/or buying the AES10B and some ammo. I have ruled out a century yugo RPK; I would rather build one myself and the time to find good kits has passed. So, AES10B (another romy RPK on the rack, but cheap); RPK74 (cool factor, but expensive and has no optic rail which I would like on a 5.45 RPK); or RPD (most expensive but probably most fun). From an investment standpoint, I would think the RPD or RPK74 would certinaly retain more of their value down the road than the AES10B. I would imagine the kits are drying up as well, might be a good time to look at the RPK74 or RPD. Anyway, enough. I could use some advice/suggestions.