I've often said that I've tried every macro but the DFA 100 and Sigma's 70mm. Yet again my blind spot is in play: I have not tried the Limited 35mm and it's much loved despite the absurd distance from front element to subject to shoot 1:1 closeups. It's something to think about though. The concept of obtaining DA21 + 35 macro to go with my A50 f/2 and M100/2.8 would be a good primal setup.
The other lens on the block is the Sigma 18-50 f/2.8-4.5. I don't want to let this go either, but again my price was excellent so I can find one again. Better still: get the HD 16-85 and call my zoom set complete (along with 55-300). Maybe some day I'll get the 150-450.. or maybe not!
We'll see where this leads in the end, but my path is reasonably straight on this -- for now!
Update - looks like both may be on the move tonight.
The 'dream kit' (all I ever do is dreeeeaam..)
zooms: HD-WR 16-85, DA∙L 55-300mm (maybe a HD-WR later)
primes: Ltd DA21, Ltd DA35 1:1 macro, smc.A50, smc.M100
Bodies: K-r for now, we shall see in the K-3ii vs K-s2 contest!