I've been holding on to my 1070ti, which is currently in repairs and who knows if it will live again. I do regret not upgrading when I had the chance — a mistake I hope I won't repeat. However, I don't want to pay those inflated prices and, like
@koh observes, while I might be willing to buy from someone who simply had had to restock at higher prices, I don't want, like
@MyBrainz and
@koh both agree, to be a part of the problem by enabling scalping. I don't hasten with moral condemnation because scalpers are in a business and supply and demand plays part and parcel of it, where humans, subjective as we tend to be, enjoy it when they can get paid extra but don't like to pay extra and are prone to inventing ideological points out of whole cloth to cover for this basic fact. So I don't want to judge (and I'm certainly not above raising the prices due to demand in my own business, which includes situations where the competition grows thinner for example because there are very few providers capable of providing the needed service within the needed time-frame), but at the same time I don't want to enable speculation consisting in buying goods quickly and adding one's markup to resale them to folks who are slower, with no added value.
I'm far from casting negative judgment on someone who just wants peace and to be left alone and will fork out to avoid strife, but at the same time I wish GPU buyers had more of a backbone and were ready to switch to consoles or laptops, prioritize CPUs, fast RAM and cooling equipment, etc. rather than just giving in. I wish the situation with mining alone would provoke a response from gamers and other buyers who have no part in mining and don't want to pay a premium for their GPUs just because miners want to use GPUs for something they don't even need a video output for (graphics cards with no graphical outputs… sign of the times we live in).
Right now I'm skeptical about forecasts of continued declines because as I look at new and used prices almost every day or sometimes several times a day, there is by no means a steady downward trend. There are spikes and reversals, however small or short-lasting. Both Covid and Putin have also taught us a lesson in prediction reliability. The situation throughout 2021 didn't necessarily coincide with predictions from weeks prior, either. And then there are anomalies like the 3070ti only now beginning to reach the same prices it asked just after it released last summer (being essentially cheaper than non-ti at that point), or the 6600XT on release, selling for less than it does now, if only for a day. So you never really know what's gonna happen — and maybe, just maybe, it's also time to start questioning the wisdom of spending time trying to predict it, as opposed to e.g. using that time to make more money, to increase the budget and just buy something and be done with it (although that would make one an enabler unless done carefully).
If I had to buy right now, I'd probably go for the cheapest 3070 from here at OC UK (550 quid) or grab the cheapest outlet 3060 or 6600XT (to avoid the hassle of old used hardware long past warranty and with who knows how much 24/7 mining under its belt and in what conditions). The latter would be pretty much an interim refresh to keep waiting for 4060, 5060, 7600XT or whatever.