I’ve recently picked up my saved game in Fallout New Vegas after a few months off. I was about 40 hours in and lost interest because the quests that took me out into the waste were drying up, and I wasn’t finding the New Vegas strip to be as compelling. The open wasteland really works for me in this game – more so than FO3 or 4. The atmosphere / characters / nature of the quests really draw me in, and to keep the good vibrations going between play sessions I’m re-reading Philip K Dick's 'Dr Bloodmoney' for the millionth time.
To improve the the lack of quests situation, I upgraded my install of the game (Steam) to the Ultimate Edition, which of course includes all of the DLC. Pro tip – buying the ultimate edition is much cheaper than getting all of the DLC separately, and Steam will work out that you have the base game and just add the DLC to it, despite the warning that you already own the game. I did start to experience the odd crash after the DLC was added though I must admit, so I looked into the 4GB memory limit plugin and unofficial patch. Starting down that path is a slippery slope for me - in the past I’ve gotten stuck in a loop of installing a whole lot of mods, playing the game for 5 minutes and then wondering “hmm I wonder if there’s a mod for X”, and I before I knew it I’d created a monstrously buggy mess and lost interest in playing altogether. I was determined not to do that with FO:NV so strictly limited myself to stability mods and a few visual improvements - nothing that impacts the game-play. I went with 3 texture replacements and ‘Fellout’ to perk the lighting up a bit, but have resisted the siren song of the countless ENB profiles / overhaul mods that add DOF, fancy weather effects, etc. It's looking great and I haven't had a single crash since.
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After:

Life? Don't talk to me about life.