When playing as Castle, I try not to upgrade archers to tier 111, but to get cavalry by 114. So I don't hesitate to dive into crypts even with basic archers, the only thing is to have around 50 pikemen and they tear through there just fine! ;)
Interesting approach, personally I only skipped upgrades on Jebus Cross, on smc I see no point in it. With basic archers it's problematic even to break into the neighboring respawn, not to mention that the shooters will melt much faster even in fights against levels 1-2. Archers and marksmen are two very different things ;), even as Fortress it sometimes makes sense to upgrade "dead" lizardmen, and as Castle it's practically mandatory ;), unless of course you're going for angels with Castle:)
Зима 2011-12.