How does tech1 metal and tech2 trade ports and making 2 tradeports prevent you from expanding? That is independant of your fleet and colony frig, and roids only cost 250+250+450/140/75.
You send your marza in solo and bomb their roid.
Tecs early game is so ridiculously strong now, and vasari's so weak. Advents only chance is rushing with disciples directly after capping 1st roid, before tec can outspam cobalts and then tech to lrms halfway through.

Dont' get me wrong, how the market works now
WAYYYYY better. It's just this buy for 300-550 and sell for 100-150 that's bad. IMO should just simply double the sell prices from what they are now and increase buy prices 50% (so buy would start at 450).
Played a 10 player game last night with lots of buying and hardly say the price go over 550..
And as Astax said I would
NEVER EVER build refineries now. Tradeports basically got buffed hard and refineries nerfed hard.. simply by how the black market works. IT seems like a gigantic oversight to me by IC and their QA team.. like the chat not sticking and lack of colors.