maybe some of you have heard about portable turntables from
vestax ( http://www.zzounds.com/item--VESHANDYTRAX )
and numark ( http://www.zzounds.com/item--NUMPT01 ).
are they the only ones on the market?

i'm wondering if it's worth buying. what do You think about the features of these 2 above? is there anything what should appear in the portable turntable and it's not in these?

what about dimensions and design? from Your own experience please tell me where and when it would be handy?