I've been buying from LRG since One Way Heroics, so I'm not unfamiliar with their waits. In fact, I don't usually mind them for the most part. The only one I thought was crazy (and made me glad I didn't buy it) was Pixel Junk 2 since their plan was for them to put it out when all the paid DLC was out so they could bundle it (understandable), but then Q-Games kept making balance updates that pushed it back and back and back before it shipped out last month despite the actual paid DLC being out for a while by that point. I felt that if they sold it later it wouldn't have felt so weird, and that's what I fear from some games since there's no need to delay in order to put something like a minor free update with only so much as a text fix on the cart, rather than something more worth saving like paid DLC or extra content. It's why I'm not fully against the idea of having the new chapter on the cart/disc either, but if it would take too long then it would make sense for them to just put it out since the whole thing is free and quick to download anyhow, instead of a paid DLC schedule where having it in a all-in-one combo deal is good. But who's to say even after this there won't be an update of some kind, that would add even more things or do something like change the soundtrack like with SMB? It's not all easy to get sadly.
People underestimate how long big digital storefronts last and the sheer amount of time they'll be up, giving each console's store a lifespan of 10 years at the minimum due to our digital future. For something super crucial like licensed games (which is why I keep pushing and hoping for The Mummy Demastered to get LRG released since the license is gonna die yet nobody's doing anything) then I fully 100% agree with doing everything to get something saved ASAP as complete as possible, but for something like Celeste it's not going to be delisted anytime soon. Like Super Meat Boy and Retro City Rampage it'll likely be ported to everything and that's pretty much standard. If the majority of PSP titles are alive on the PSN (and you can even buy and redownload stuff to your PSP today in 2019, 14 years after launch), then I seriously doubt the PS4 servers will die in 14 years. Even delisted games can support prior updates (Though NOT paid/free DLC from the online stores, which is why bundling them with a game is ideal) so that's why I don't really get worked up about the whole thing.
I mainly buy LRG stuff to play them either as a complete edition or just to support devs more, or both, and I think the only thing I own that makes me wish they did more was the DARIUSBURST CE which lacks any of the paid DLC since they're damn expensive on PSN and I spent $100 on it to begin with, which is why I'm glad they waited and went for a more complete route with Game Tengoku. It's also why I waited on Guacamelee since I wanted to see if they'd do a physical bundled with the DLC and they are doing that. (Even on Switch, the DLC is still included via a code so I have everything in one spot anyhow) But stuff like having to download an update for Super Meat Boy that just changes the icon isn't a thing I really get bummed or worried about like some people do, and on Switch you can even transfer update data locally meaning that you don't even need the internet to preserve the update files, if in 20-30 years the update servers shut down.
TLDR: I buy these games mainly to enjoy them as is, don't usually mind the wait since it's always worth it, but if it's crazy like PMJ2 which was due to OCD of needing to be the most complete possible despite only planning for paid DLC, then I will get a bit miffed, yes. Of course if they sell an LRG game after it's mostly finished that's the ideal route since there's no need to worry about waiting for a patch to get added or being missed.
Again, I'm not a first time buyer. I bought Cosmic Star Heroine's CE and waited until October for it and it came out perfectly. I'm used to waits, but those tend to be usually planned/due to sudden events popping up, not because of having to wait for something that takes 1 minute to download when you put the game in.
