oh boy, thanks for a new sig idea.
On a more serious note, Fallout 1, 2 and Tactics are currently 50% off on Steam, $15 for 3 games individually, ~$10 if you buy the bundle instead, won't hurt your savings for WOW:Legion coming out in 2 months and DOW3 coming out in 2017. Heck, GOG Summer Sale a month ago was much more generous of putting those classics on 75% (or was it 80%?) off, $5(!) for 3 games? Man, oh man. There's also the Winter Sale, so you should really consider it.
On an even more serious note, though, you should really hold back from buying any games these days on Day 1 release, unless the game has been receiving a lot of fan feedback (like through proper Early Access or Demos)
I'm going to proudly proclaim that Underrail is my first(!) cRPG ever(!). It's the game where I genuinely step out of my comfort zone in gaming, and the one that truly motivates me to finally try Fallout 1 and 2. Back then, I was afraid I couldn't get into the classics just because they looks outdated and shit. But the disappointment generated by Fallout 4 AND the final release of Underrail a month after Fallout 4 made me go for Underrail instead. Even though the writings and the overall narrative isn't Fallout level, it's close... very close indeed.
To be fair, I've heard that Underrail has been in far longer development time than we could've expected, but that doesn't speak in Fallout 4's favor, eh?